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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/profiles/profile_info_cache.h"
      6 
      7 #include "base/bind.h"
      8 #include "base/file_util.h"
      9 #include "base/i18n/case_conversion.h"
     10 #include "base/logging.h"
     11 #include "base/memory/scoped_ptr.h"
     12 #include "base/prefs/pref_registry_simple.h"
     13 #include "base/prefs/pref_service.h"
     14 #include "base/prefs/scoped_user_pref_update.h"
     15 #include "base/rand_util.h"
     16 #include "base/stl_util.h"
     17 #include "base/strings/string_number_conversions.h"
     18 #include "base/strings/string_piece.h"
     19 #include "base/strings/utf_string_conversions.h"
     20 #include "base/values.h"
     21 #include "chrome/browser/browser_process.h"
     22 #include "chrome/browser/chrome_notification_types.h"
     23 #include "chrome/browser/profiles/profile_avatar_downloader.h"
     24 #include "chrome/browser/profiles/profile_avatar_icon_util.h"
     25 #include "chrome/browser/profiles/profiles_state.h"
     26 #include "chrome/common/pref_names.h"
     27 #include "components/signin/core/common/profile_management_switches.h"
     28 #include "content/public/browser/browser_thread.h"
     29 #include "content/public/browser/notification_service.h"
     30 #include "grit/generated_resources.h"
     31 #include "grit/theme_resources.h"
     32 #include "ui/base/l10n/l10n_util.h"
     33 #include "ui/base/resource/resource_bundle.h"
     34 #include "ui/gfx/image/image.h"
     35 #include "ui/gfx/image/image_util.h"
     36 
     37 using content::BrowserThread;
     38 
     39 namespace {
     40 
     41 const char kNameKey[] = "name";
     42 const char kShortcutNameKey[] = "shortcut_name";
     43 const char kGAIANameKey[] = "gaia_name";
     44 const char kGAIAGivenNameKey[] = "gaia_given_name";
     45 const char kUserNameKey[] = "user_name";
     46 const char kIsUsingDefaultName[] = "is_using_default_name";
     47 const char kAvatarIconKey[] = "avatar_icon";
     48 const char kAuthCredentialsKey[] = "local_auth_credentials";
     49 const char kUseGAIAPictureKey[] = "use_gaia_picture";
     50 const char kBackgroundAppsKey[] = "background_apps";
     51 const char kGAIAPictureFileNameKey[] = "gaia_picture_file_name";
     52 const char kIsSupervisedKey[] = "is_managed";
     53 const char kIsOmittedFromProfileListKey[] = "is_omitted_from_profile_list";
     54 const char kSigninRequiredKey[] = "signin_required";
     55 const char kSupervisedUserId[] = "managed_user_id";
     56 const char kProfileIsEphemeral[] = "is_ephemeral";
     57 const char kActiveTimeKey[] = "active_time";
     58 
     59 // First eight are generic icons, which use IDS_NUMBERED_PROFILE_NAME.
     60 const int kDefaultNames[] = {
     61   IDS_DEFAULT_AVATAR_NAME_8,
     62   IDS_DEFAULT_AVATAR_NAME_9,
     63   IDS_DEFAULT_AVATAR_NAME_10,
     64   IDS_DEFAULT_AVATAR_NAME_11,
     65   IDS_DEFAULT_AVATAR_NAME_12,
     66   IDS_DEFAULT_AVATAR_NAME_13,
     67   IDS_DEFAULT_AVATAR_NAME_14,
     68   IDS_DEFAULT_AVATAR_NAME_15,
     69   IDS_DEFAULT_AVATAR_NAME_16,
     70   IDS_DEFAULT_AVATAR_NAME_17,
     71   IDS_DEFAULT_AVATAR_NAME_18,
     72   IDS_DEFAULT_AVATAR_NAME_19,
     73   IDS_DEFAULT_AVATAR_NAME_20,
     74   IDS_DEFAULT_AVATAR_NAME_21,
     75   IDS_DEFAULT_AVATAR_NAME_22,
     76   IDS_DEFAULT_AVATAR_NAME_23,
     77   IDS_DEFAULT_AVATAR_NAME_24,
     78   IDS_DEFAULT_AVATAR_NAME_25,
     79   IDS_DEFAULT_AVATAR_NAME_26
     80 };
     81 
     82 typedef std::vector<unsigned char> ImageData;
     83 
     84 // Writes |data| to disk and takes ownership of the pointer. On successful
     85 // completion, it runs |callback|.
     86 void SaveBitmap(scoped_ptr<ImageData> data,
     87                 const base::FilePath& image_path,
     88                 const base::Closure& callback) {
     89   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
     90 
     91   // Make sure the destination directory exists.
     92   base::FilePath dir = image_path.DirName();
     93   if (!base::DirectoryExists(dir) && !base::CreateDirectory(dir)) {
     94     LOG(ERROR) << "Failed to create parent directory.";
     95     return;
     96   }
     97 
     98   if (base::WriteFile(image_path, reinterpret_cast<char*>(&(*data)[0]),
     99                       data->size()) == -1) {
    100     LOG(ERROR) << "Failed to save image to file.";
    101     return;
    102   }
    103 
    104   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, callback);
    105 }
    106 
    107 // Reads a PNG from disk and decodes it. If the bitmap was successfully read
    108 // from disk the then |out_image| will contain the bitmap image, otherwise it
    109 // will be NULL.
    110 void ReadBitmap(const base::FilePath& image_path,
    111                 gfx::Image** out_image) {
    112   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
    113   *out_image = NULL;
    114 
    115   // If the path doesn't exist, don't even try reading it.
    116   if (!base::PathExists(image_path))
    117     return;
    118 
    119   std::string image_data;
    120   if (!base::ReadFileToString(image_path, &image_data)) {
    121     LOG(ERROR) << "Failed to read PNG file from disk.";
    122     return;
    123   }
    124 
    125   gfx::Image image = gfx::Image::CreateFrom1xPNGBytes(
    126       base::RefCountedString::TakeString(&image_data));
    127   if (image.IsEmpty()) {
    128     LOG(ERROR) << "Failed to decode PNG file.";
    129     return;
    130   }
    131 
    132   *out_image = new gfx::Image(image);
    133 }
    134 
    135 void DeleteBitmap(const base::FilePath& image_path) {
    136   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
    137   base::DeleteFile(image_path, false);
    138 }
    139 
    140 bool IsDefaultName(const base::string16& name) {
    141   // Check if it's a "First user" old-style name.
    142   if (name == l10n_util::GetStringUTF16(IDS_DEFAULT_PROFILE_NAME))
    143     return true;
    144 
    145   // Check if it's one of the old-style profile names.
    146   for (size_t i = 0; i < arraysize(kDefaultNames); ++i) {
    147     if (name == l10n_util::GetStringUTF16(kDefaultNames[i]))
    148       return true;
    149   }
    150 
    151   // Check whether it's one of the "Person %d" style names.
    152   std::string default_name_format = l10n_util::GetStringFUTF8(
    153       IDS_NEW_NUMBERED_PROFILE_NAME, base::string16()) + "%d";
    154 
    155   int generic_profile_number;  // Unused. Just a placeholder for sscanf.
    156   int assignments = sscanf(base::UTF16ToUTF8(name).c_str(),
    157                            default_name_format.c_str(),
    158                            &generic_profile_number);
    159   // Unless it matched the format, this is a custom name.
    160   return assignments == 1;
    161 }
    162 
    163 }  // namespace
    164 
    165 ProfileInfoCache::ProfileInfoCache(PrefService* prefs,
    166                                    const base::FilePath& user_data_dir)
    167     : prefs_(prefs),
    168       user_data_dir_(user_data_dir) {
    169   // Populate the cache
    170   DictionaryPrefUpdate update(prefs_, prefs::kProfileInfoCache);
    171   base::DictionaryValue* cache = update.Get();
    172   for (base::DictionaryValue::Iterator it(*cache);
    173        !it.IsAtEnd(); it.Advance()) {
    174     base::DictionaryValue* info = NULL;
    175     cache->GetDictionaryWithoutPathExpansion(it.key(), &info);
    176     base::string16 name;
    177     info->GetString(kNameKey, &name);
    178     sorted_keys_.insert(FindPositionForProfile(it.key(), name), it.key());
    179     // TODO(ibraaaa): delete this when 97% of our users are using M31.
    180     // http://crbug.com/276163
    181     bool is_supervised = false;
    182     if (info->GetBoolean(kIsSupervisedKey, &is_supervised)) {
    183       info->Remove(kIsSupervisedKey, NULL);
    184       info->SetString(kSupervisedUserId,
    185                       is_supervised ? "DUMMY_ID" : std::string());
    186     }
    187     info->SetBoolean(kIsUsingDefaultName, IsDefaultName(name));
    188   }
    189 
    190   // If needed, start downloading the high-res avatars.
    191   if (switches::IsNewAvatarMenu()) {
    192     for (size_t i = 0; i < GetNumberOfProfiles(); i++) {
    193       DownloadHighResAvatar(GetAvatarIconIndexOfProfileAtIndex(i),
    194                             GetPathOfProfileAtIndex(i));
    195     }
    196   }
    197 }
    198 
    199 ProfileInfoCache::~ProfileInfoCache() {
    200   STLDeleteContainerPairSecondPointers(
    201       cached_avatar_images_.begin(), cached_avatar_images_.end());
    202   STLDeleteContainerPairSecondPointers(
    203       avatar_images_downloads_in_progress_.begin(),
    204       avatar_images_downloads_in_progress_.end());
    205 }
    206 
    207 void ProfileInfoCache::AddProfileToCache(
    208     const base::FilePath& profile_path,
    209     const base::string16& name,
    210     const base::string16& username,
    211     size_t icon_index,
    212     const std::string& supervised_user_id) {
    213   std::string key = CacheKeyFromProfilePath(profile_path);
    214   DictionaryPrefUpdate update(prefs_, prefs::kProfileInfoCache);
    215   base::DictionaryValue* cache = update.Get();
    216 
    217   scoped_ptr<base::DictionaryValue> info(new base::DictionaryValue);
    218   info->SetString(kNameKey, name);
    219   info->SetString(kUserNameKey, username);
    220   info->SetString(kAvatarIconKey,
    221       profiles::GetDefaultAvatarIconUrl(icon_index));
    222   // Default value for whether background apps are running is false.
    223   info->SetBoolean(kBackgroundAppsKey, false);
    224   info->SetString(kSupervisedUserId, supervised_user_id);
    225   info->SetBoolean(kIsOmittedFromProfileListKey, !supervised_user_id.empty());
    226   info->SetBoolean(kProfileIsEphemeral, false);
    227   info->SetBoolean(kIsUsingDefaultName, IsDefaultName(name));
    228   cache->SetWithoutPathExpansion(key, info.release());
    229 
    230   sorted_keys_.insert(FindPositionForProfile(key, name), key);
    231 
    232   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
    233                     observer_list_,
    234                     OnProfileAdded(profile_path));
    235 
    236   content::NotificationService::current()->Notify(
    237       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
    238       content::NotificationService::AllSources(),
    239       content::NotificationService::NoDetails());
    240 }
    241 
    242 void ProfileInfoCache::AddObserver(ProfileInfoCacheObserver* obs) {
    243   observer_list_.AddObserver(obs);
    244 }
    245 
    246 void ProfileInfoCache::RemoveObserver(ProfileInfoCacheObserver* obs) {
    247   observer_list_.RemoveObserver(obs);
    248 }
    249 
    250 void ProfileInfoCache::DeleteProfileFromCache(
    251     const base::FilePath& profile_path) {
    252   size_t profile_index = GetIndexOfProfileWithPath(profile_path);
    253   if (profile_index == std::string::npos) {
    254     NOTREACHED();
    255     return;
    256   }
    257   base::string16 name = GetNameOfProfileAtIndex(profile_index);
    258 
    259   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
    260                     observer_list_,
    261                     OnProfileWillBeRemoved(profile_path));
    262 
    263   DictionaryPrefUpdate update(prefs_, prefs::kProfileInfoCache);
    264   base::DictionaryValue* cache = update.Get();
    265   std::string key = CacheKeyFromProfilePath(profile_path);
    266   cache->Remove(key, NULL);
    267   sorted_keys_.erase(std::find(sorted_keys_.begin(), sorted_keys_.end(), key));
    268 
    269   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
    270                     observer_list_,
    271                     OnProfileWasRemoved(profile_path, name));
    272 
    273   content::NotificationService::current()->Notify(
    274       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
    275       content::NotificationService::AllSources(),
    276       content::NotificationService::NoDetails());
    277 }
    278 
    279 size_t ProfileInfoCache::GetNumberOfProfiles() const {
    280   return sorted_keys_.size();
    281 }
    282 
    283 size_t ProfileInfoCache::GetIndexOfProfileWithPath(
    284     const base::FilePath& profile_path) const {
    285   if (profile_path.DirName() != user_data_dir_)
    286     return std::string::npos;
    287   std::string search_key = CacheKeyFromProfilePath(profile_path);
    288   for (size_t i = 0; i < sorted_keys_.size(); ++i) {
    289     if (sorted_keys_[i] == search_key)
    290       return i;
    291   }
    292   return std::string::npos;
    293 }
    294 
    295 base::string16 ProfileInfoCache::GetNameOfProfileAtIndex(size_t index) const {
    296   base::string16 name;
    297   // Unless the user has customized the profile name, we should use the
    298   // profile's Gaia given name, if it's available.
    299   if (ProfileIsUsingDefaultNameAtIndex(index)) {
    300     base::string16 given_name = GetGAIAGivenNameOfProfileAtIndex(index);
    301     name = given_name.empty() ? GetGAIANameOfProfileAtIndex(index) : given_name;
    302   }
    303   if (name.empty())
    304     GetInfoForProfileAtIndex(index)->GetString(kNameKey, &name);
    305   return name;
    306 }
    307 
    308 base::string16 ProfileInfoCache::GetShortcutNameOfProfileAtIndex(size_t index)
    309     const {
    310   base::string16 shortcut_name;
    311   GetInfoForProfileAtIndex(index)->GetString(
    312       kShortcutNameKey, &shortcut_name);
    313   return shortcut_name;
    314 }
    315 
    316 base::FilePath ProfileInfoCache::GetPathOfProfileAtIndex(size_t index) const {
    317   return user_data_dir_.AppendASCII(sorted_keys_[index]);
    318 }
    319 
    320 base::Time ProfileInfoCache::GetProfileActiveTimeAtIndex(size_t index) const {
    321   double dt;
    322   if (GetInfoForProfileAtIndex(index)->GetDouble(kActiveTimeKey, &dt)) {
    323     return base::Time::FromDoubleT(dt);
    324   } else {
    325     return base::Time();
    326   }
    327 }
    328 
    329 base::string16 ProfileInfoCache::GetUserNameOfProfileAtIndex(
    330     size_t index) const {
    331   base::string16 user_name;
    332   GetInfoForProfileAtIndex(index)->GetString(kUserNameKey, &user_name);
    333   return user_name;
    334 }
    335 
    336 const gfx::Image& ProfileInfoCache::GetAvatarIconOfProfileAtIndex(
    337     size_t index) const {
    338   if (IsUsingGAIAPictureOfProfileAtIndex(index)) {
    339     const gfx::Image* image = GetGAIAPictureOfProfileAtIndex(index);
    340     if (image)
    341       return *image;
    342   }
    343 
    344   // Use the high resolution version of the avatar if it exists.
    345   if (switches::IsNewAvatarMenu()) {
    346     const gfx::Image* image = GetHighResAvatarOfProfileAtIndex(index);
    347     if (image)
    348       return *image;
    349   }
    350 
    351   int resource_id = profiles::GetDefaultAvatarIconResourceIDAtIndex(
    352       GetAvatarIconIndexOfProfileAtIndex(index));
    353   return ResourceBundle::GetSharedInstance().GetNativeImageNamed(resource_id);
    354 }
    355 
    356 std::string ProfileInfoCache::GetLocalAuthCredentialsOfProfileAtIndex(
    357     size_t index) const {
    358   std::string credentials;
    359   GetInfoForProfileAtIndex(index)->GetString(kAuthCredentialsKey, &credentials);
    360   return credentials;
    361 }
    362 
    363 bool ProfileInfoCache::GetBackgroundStatusOfProfileAtIndex(
    364     size_t index) const {
    365   bool background_app_status;
    366   if (!GetInfoForProfileAtIndex(index)->GetBoolean(kBackgroundAppsKey,
    367                                                    &background_app_status)) {
    368     return false;
    369   }
    370   return background_app_status;
    371 }
    372 
    373 base::string16 ProfileInfoCache::GetGAIANameOfProfileAtIndex(
    374     size_t index) const {
    375   base::string16 name;
    376   GetInfoForProfileAtIndex(index)->GetString(kGAIANameKey, &name);
    377   return name;
    378 }
    379 
    380 base::string16 ProfileInfoCache::GetGAIAGivenNameOfProfileAtIndex(
    381     size_t index) const {
    382   base::string16 name;
    383   GetInfoForProfileAtIndex(index)->GetString(kGAIAGivenNameKey, &name);
    384   return name;
    385 }
    386 
    387 const gfx::Image* ProfileInfoCache::GetGAIAPictureOfProfileAtIndex(
    388     size_t index) const {
    389   base::FilePath path = GetPathOfProfileAtIndex(index);
    390   std::string key = CacheKeyFromProfilePath(path);
    391 
    392   std::string file_name;
    393   GetInfoForProfileAtIndex(index)->GetString(
    394       kGAIAPictureFileNameKey, &file_name);
    395 
    396   // If the picture is not on disk then return NULL.
    397   if (file_name.empty())
    398     return NULL;
    399 
    400   base::FilePath image_path = path.AppendASCII(file_name);
    401   return LoadAvatarPictureFromPath(key, image_path);
    402 }
    403 
    404 bool ProfileInfoCache::IsUsingGAIAPictureOfProfileAtIndex(size_t index) const {
    405   bool value = false;
    406   GetInfoForProfileAtIndex(index)->GetBoolean(kUseGAIAPictureKey, &value);
    407   return value;
    408 }
    409 
    410 bool ProfileInfoCache::ProfileIsSupervisedAtIndex(size_t index) const {
    411   return !GetSupervisedUserIdOfProfileAtIndex(index).empty();
    412 }
    413 
    414 bool ProfileInfoCache::IsOmittedProfileAtIndex(size_t index) const {
    415   bool value = false;
    416   GetInfoForProfileAtIndex(index)->GetBoolean(kIsOmittedFromProfileListKey,
    417                                               &value);
    418   return value;
    419 }
    420 
    421 bool ProfileInfoCache::ProfileIsSigninRequiredAtIndex(size_t index) const {
    422   bool value = false;
    423   GetInfoForProfileAtIndex(index)->GetBoolean(kSigninRequiredKey, &value);
    424   return value;
    425 }
    426 
    427 std::string ProfileInfoCache::GetSupervisedUserIdOfProfileAtIndex(
    428     size_t index) const {
    429   std::string supervised_user_id;
    430   GetInfoForProfileAtIndex(index)->GetString(kSupervisedUserId,
    431                                              &supervised_user_id);
    432   return supervised_user_id;
    433 }
    434 
    435 bool ProfileInfoCache::ProfileIsEphemeralAtIndex(size_t index) const {
    436   bool value = false;
    437   GetInfoForProfileAtIndex(index)->GetBoolean(kProfileIsEphemeral, &value);
    438   return value;
    439 }
    440 
    441 bool ProfileInfoCache::ProfileIsUsingDefaultNameAtIndex(size_t index) const {
    442   bool value = false;
    443   GetInfoForProfileAtIndex(index)->GetBoolean(kIsUsingDefaultName, &value);
    444   return value;
    445 }
    446 
    447 size_t ProfileInfoCache::GetAvatarIconIndexOfProfileAtIndex(size_t index)
    448     const {
    449   std::string icon_url;
    450   GetInfoForProfileAtIndex(index)->GetString(kAvatarIconKey, &icon_url);
    451   size_t icon_index = 0;
    452   if (!profiles::IsDefaultAvatarIconUrl(icon_url, &icon_index))
    453     DLOG(WARNING) << "Unknown avatar icon: " << icon_url;
    454 
    455   return icon_index;
    456 }
    457 
    458 void ProfileInfoCache::SetProfileActiveTimeAtIndex(size_t index) {
    459   scoped_ptr<base::DictionaryValue> info(
    460       GetInfoForProfileAtIndex(index)->DeepCopy());
    461   info->SetDouble(kActiveTimeKey, base::Time::Now().ToDoubleT());
    462   // This takes ownership of |info|.
    463   SetInfoQuietlyForProfileAtIndex(index, info.release());
    464 }
    465 
    466 void ProfileInfoCache::SetNameOfProfileAtIndex(size_t index,
    467                                                const base::string16& name) {
    468   scoped_ptr<base::DictionaryValue> info(
    469       GetInfoForProfileAtIndex(index)->DeepCopy());
    470   base::string16 current_name;
    471   info->GetString(kNameKey, &current_name);
    472   if (name == current_name)
    473     return;
    474 
    475   base::string16 old_display_name = GetNameOfProfileAtIndex(index);
    476   info->SetString(kNameKey, name);
    477   info->SetBoolean(kIsUsingDefaultName, false);
    478 
    479   // This takes ownership of |info|.
    480   SetInfoForProfileAtIndex(index, info.release());
    481   base::string16 new_display_name = GetNameOfProfileAtIndex(index);
    482   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
    483   UpdateSortForProfileIndex(index);
    484 
    485   if (old_display_name != new_display_name) {
    486     FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
    487                       observer_list_,
    488                       OnProfileNameChanged(profile_path, old_display_name));
    489   }
    490 }
    491 
    492 void ProfileInfoCache::SetShortcutNameOfProfileAtIndex(
    493     size_t index,
    494     const base::string16& shortcut_name) {
    495   if (shortcut_name == GetShortcutNameOfProfileAtIndex(index))
    496     return;
    497   scoped_ptr<base::DictionaryValue> info(
    498       GetInfoForProfileAtIndex(index)->DeepCopy());
    499   info->SetString(kShortcutNameKey, shortcut_name);
    500   // This takes ownership of |info|.
    501   SetInfoForProfileAtIndex(index, info.release());
    502 }
    503 
    504 void ProfileInfoCache::SetUserNameOfProfileAtIndex(
    505     size_t index,
    506     const base::string16& user_name) {
    507   if (user_name == GetUserNameOfProfileAtIndex(index))
    508     return;
    509 
    510   scoped_ptr<base::DictionaryValue> info(
    511       GetInfoForProfileAtIndex(index)->DeepCopy());
    512   info->SetString(kUserNameKey, user_name);
    513   // This takes ownership of |info|.
    514   SetInfoForProfileAtIndex(index, info.release());
    515 }
    516 
    517 void ProfileInfoCache::SetAvatarIconOfProfileAtIndex(size_t index,
    518                                                      size_t icon_index) {
    519   scoped_ptr<base::DictionaryValue> info(
    520       GetInfoForProfileAtIndex(index)->DeepCopy());
    521   info->SetString(kAvatarIconKey,
    522       profiles::GetDefaultAvatarIconUrl(icon_index));
    523   // This takes ownership of |info|.
    524   SetInfoForProfileAtIndex(index, info.release());
    525 
    526   // If needed, start downloading the high-res avatar.
    527   if (switches::IsNewAvatarMenu())
    528     DownloadHighResAvatar(icon_index, GetPathOfProfileAtIndex(index));
    529 
    530   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
    531   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
    532                     observer_list_,
    533                     OnProfileAvatarChanged(profile_path));
    534 }
    535 
    536 void ProfileInfoCache::SetIsOmittedProfileAtIndex(size_t index,
    537                                                   bool is_omitted) {
    538   if (IsOmittedProfileAtIndex(index) == is_omitted)
    539     return;
    540   scoped_ptr<base::DictionaryValue> info(
    541       GetInfoForProfileAtIndex(index)->DeepCopy());
    542   info->SetBoolean(kIsOmittedFromProfileListKey, is_omitted);
    543   // This takes ownership of |info|.
    544   SetInfoForProfileAtIndex(index, info.release());
    545 }
    546 
    547 void ProfileInfoCache::SetSupervisedUserIdOfProfileAtIndex(
    548     size_t index,
    549     const std::string& id) {
    550   if (GetSupervisedUserIdOfProfileAtIndex(index) == id)
    551     return;
    552   scoped_ptr<base::DictionaryValue> info(
    553       GetInfoForProfileAtIndex(index)->DeepCopy());
    554   info->SetString(kSupervisedUserId, id);
    555   // This takes ownership of |info|.
    556   SetInfoForProfileAtIndex(index, info.release());
    557 
    558   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
    559   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
    560                     observer_list_,
    561                     OnProfileSupervisedUserIdChanged(profile_path));
    562 }
    563 
    564 void ProfileInfoCache::SetLocalAuthCredentialsOfProfileAtIndex(
    565     size_t index,
    566     const std::string& credentials) {
    567   scoped_ptr<base::DictionaryValue> info(
    568       GetInfoForProfileAtIndex(index)->DeepCopy());
    569   info->SetString(kAuthCredentialsKey, credentials);
    570   // This takes ownership of |info|.
    571   SetInfoForProfileAtIndex(index, info.release());
    572 }
    573 
    574 void ProfileInfoCache::SetBackgroundStatusOfProfileAtIndex(
    575     size_t index,
    576     bool running_background_apps) {
    577   if (GetBackgroundStatusOfProfileAtIndex(index) == running_background_apps)
    578     return;
    579   scoped_ptr<base::DictionaryValue> info(
    580       GetInfoForProfileAtIndex(index)->DeepCopy());
    581   info->SetBoolean(kBackgroundAppsKey, running_background_apps);
    582   // This takes ownership of |info|.
    583   SetInfoForProfileAtIndex(index, info.release());
    584 }
    585 
    586 void ProfileInfoCache::SetGAIANameOfProfileAtIndex(size_t index,
    587                                                    const base::string16& name) {
    588   if (name == GetGAIANameOfProfileAtIndex(index))
    589     return;
    590 
    591   base::string16 old_display_name = GetNameOfProfileAtIndex(index);
    592   scoped_ptr<base::DictionaryValue> info(
    593       GetInfoForProfileAtIndex(index)->DeepCopy());
    594   info->SetString(kGAIANameKey, name);
    595   // This takes ownership of |info|.
    596   SetInfoForProfileAtIndex(index, info.release());
    597   base::string16 new_display_name = GetNameOfProfileAtIndex(index);
    598   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
    599   UpdateSortForProfileIndex(index);
    600 
    601   if (old_display_name != new_display_name) {
    602     FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
    603                       observer_list_,
    604                       OnProfileNameChanged(profile_path, old_display_name));
    605   }
    606 }
    607 
    608 void ProfileInfoCache::SetGAIAGivenNameOfProfileAtIndex(
    609     size_t index,
    610     const base::string16& name) {
    611   if (name == GetGAIAGivenNameOfProfileAtIndex(index))
    612     return;
    613 
    614   scoped_ptr<base::DictionaryValue> info(
    615       GetInfoForProfileAtIndex(index)->DeepCopy());
    616   info->SetString(kGAIAGivenNameKey, name);
    617   // This takes ownership of |info|.
    618   SetInfoForProfileAtIndex(index, info.release());
    619 }
    620 
    621 void ProfileInfoCache::SetGAIAPictureOfProfileAtIndex(size_t index,
    622                                                       const gfx::Image* image) {
    623   base::FilePath path = GetPathOfProfileAtIndex(index);
    624   std::string key = CacheKeyFromProfilePath(path);
    625 
    626   // Delete the old bitmap from cache.
    627   std::map<std::string, gfx::Image*>::iterator it =
    628       cached_avatar_images_.find(key);
    629   if (it != cached_avatar_images_.end()) {
    630     delete it->second;
    631     cached_avatar_images_.erase(it);
    632   }
    633 
    634   std::string old_file_name;
    635   GetInfoForProfileAtIndex(index)->GetString(
    636       kGAIAPictureFileNameKey, &old_file_name);
    637   std::string new_file_name;
    638 
    639   if (!image) {
    640     // Delete the old bitmap from disk.
    641     if (!old_file_name.empty()) {
    642       base::FilePath image_path = path.AppendASCII(old_file_name);
    643       BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
    644                               base::Bind(&DeleteBitmap, image_path));
    645     }
    646   } else {
    647     // Save the new bitmap to disk.
    648     new_file_name =
    649         old_file_name.empty() ? profiles::kGAIAPictureFileName : old_file_name;
    650     base::FilePath image_path = path.AppendASCII(new_file_name);
    651     SaveAvatarImageAtPath(
    652         image, key, image_path, GetPathOfProfileAtIndex(index));
    653   }
    654 
    655   scoped_ptr<base::DictionaryValue> info(
    656       GetInfoForProfileAtIndex(index)->DeepCopy());
    657   info->SetString(kGAIAPictureFileNameKey, new_file_name);
    658   // This takes ownership of |info|.
    659   SetInfoForProfileAtIndex(index, info.release());
    660 
    661   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
    662                     observer_list_,
    663                     OnProfileAvatarChanged(path));
    664 }
    665 
    666 void ProfileInfoCache::SetIsUsingGAIAPictureOfProfileAtIndex(size_t index,
    667                                                              bool value) {
    668   scoped_ptr<base::DictionaryValue> info(
    669       GetInfoForProfileAtIndex(index)->DeepCopy());
    670   info->SetBoolean(kUseGAIAPictureKey, value);
    671   // This takes ownership of |info|.
    672   SetInfoForProfileAtIndex(index, info.release());
    673 
    674   // Retrieve some info to update observers who care about avatar changes.
    675   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
    676   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
    677                     observer_list_,
    678                     OnProfileAvatarChanged(profile_path));
    679 }
    680 
    681 void ProfileInfoCache::SetProfileSigninRequiredAtIndex(size_t index,
    682                                                        bool value) {
    683   if (value == ProfileIsSigninRequiredAtIndex(index))
    684     return;
    685 
    686   scoped_ptr<base::DictionaryValue> info(
    687       GetInfoForProfileAtIndex(index)->DeepCopy());
    688   info->SetBoolean(kSigninRequiredKey, value);
    689   // This takes ownership of |info|.
    690   SetInfoForProfileAtIndex(index, info.release());
    691 
    692   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
    693   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
    694                     observer_list_,
    695                     OnProfileSigninRequiredChanged(profile_path));
    696 }
    697 
    698 void ProfileInfoCache::SetProfileIsEphemeralAtIndex(size_t index, bool value) {
    699   if (value == ProfileIsEphemeralAtIndex(index))
    700     return;
    701 
    702   scoped_ptr<base::DictionaryValue> info(
    703       GetInfoForProfileAtIndex(index)->DeepCopy());
    704   info->SetBoolean(kProfileIsEphemeral, value);
    705   // This takes ownership of |info|.
    706   SetInfoForProfileAtIndex(index, info.release());
    707 }
    708 
    709 void ProfileInfoCache::SetProfileIsUsingDefaultNameAtIndex(
    710     size_t index, bool value) {
    711   if (value == ProfileIsUsingDefaultNameAtIndex(index))
    712     return;
    713 
    714   scoped_ptr<base::DictionaryValue> info(
    715       GetInfoForProfileAtIndex(index)->DeepCopy());
    716   info->SetBoolean(kIsUsingDefaultName, value);
    717   // This takes ownership of |info|.
    718   SetInfoForProfileAtIndex(index, info.release());
    719 }
    720 
    721 base::string16 ProfileInfoCache::ChooseNameForNewProfile(
    722     size_t icon_index) const {
    723   base::string16 name;
    724   for (int name_index = 1; ; ++name_index) {
    725     if (switches::IsNewProfileManagement()) {
    726       name = l10n_util::GetStringFUTF16Int(IDS_NEW_NUMBERED_PROFILE_NAME,
    727                                            name_index);
    728     } else if (icon_index < profiles::GetGenericAvatarIconCount()) {
    729       name = l10n_util::GetStringFUTF16Int(IDS_NUMBERED_PROFILE_NAME,
    730                                            name_index);
    731     } else {
    732       name = l10n_util::GetStringUTF16(
    733           kDefaultNames[icon_index - profiles::GetGenericAvatarIconCount()]);
    734       if (name_index > 1)
    735         name.append(base::UTF8ToUTF16(base::IntToString(name_index)));
    736     }
    737 
    738     // Loop through previously named profiles to ensure we're not duplicating.
    739     bool name_found = false;
    740     for (size_t i = 0; i < GetNumberOfProfiles(); ++i) {
    741       if (GetNameOfProfileAtIndex(i) == name) {
    742         name_found = true;
    743         break;
    744       }
    745     }
    746     if (!name_found)
    747       return name;
    748   }
    749 }
    750 
    751 size_t ProfileInfoCache::ChooseAvatarIconIndexForNewProfile() const {
    752   size_t icon_index = 0;
    753   // Try to find a unique, non-generic icon.
    754   if (ChooseAvatarIconIndexForNewProfile(false, true, &icon_index))
    755     return icon_index;
    756   // Try to find any unique icon.
    757   if (ChooseAvatarIconIndexForNewProfile(true, true, &icon_index))
    758     return icon_index;
    759   // Settle for any random icon, even if it's not unique.
    760   if (ChooseAvatarIconIndexForNewProfile(true, false, &icon_index))
    761     return icon_index;
    762 
    763   NOTREACHED();
    764   return 0;
    765 }
    766 
    767 const base::FilePath& ProfileInfoCache::GetUserDataDir() const {
    768   return user_data_dir_;
    769 }
    770 
    771 // static
    772 std::vector<base::string16> ProfileInfoCache::GetProfileNames() {
    773   std::vector<base::string16> names;
    774   PrefService* local_state = g_browser_process->local_state();
    775   const base::DictionaryValue* cache = local_state->GetDictionary(
    776       prefs::kProfileInfoCache);
    777   base::string16 name;
    778   for (base::DictionaryValue::Iterator it(*cache); !it.IsAtEnd();
    779        it.Advance()) {
    780     const base::DictionaryValue* info = NULL;
    781     it.value().GetAsDictionary(&info);
    782     info->GetString(kNameKey, &name);
    783     names.push_back(name);
    784   }
    785   return names;
    786 }
    787 
    788 // static
    789 void ProfileInfoCache::RegisterPrefs(PrefRegistrySimple* registry) {
    790   registry->RegisterDictionaryPref(prefs::kProfileInfoCache);
    791 }
    792 
    793 void ProfileInfoCache::DownloadHighResAvatar(
    794     size_t icon_index,
    795     const base::FilePath& profile_path) {
    796   // Downloading is only supported on desktop.
    797 #if defined(OS_ANDROID) || defined(OS_IOS) || defined(OS_CHROMEOS)
    798   return;
    799 #endif
    800 
    801   // TODO(noms): We should check whether the file already exists on disk
    802   // before trying to re-download it. For now, since this is behind a flag and
    803   // the resources are still changing, re-download it every time the profile
    804   // avatar changes, to make sure we have the latest copy.
    805   std::string file_name = profiles::GetDefaultAvatarIconFileNameAtIndex(
    806       icon_index);
    807   // If the file is already being downloaded, don't start another download.
    808   if (avatar_images_downloads_in_progress_[file_name])
    809     return;
    810 
    811   // Start the download for this file. The cache takes ownership of the
    812   // |avatar_downloader|, which will be deleted when the download completes, or
    813   // if that never happens, when the ProfileInfoCache is destroyed.
    814   ProfileAvatarDownloader* avatar_downloader = new ProfileAvatarDownloader(
    815       icon_index,
    816       profile_path,
    817       this);
    818   avatar_images_downloads_in_progress_[file_name] = avatar_downloader;
    819   avatar_downloader->Start();
    820 }
    821 
    822 void ProfileInfoCache::SaveAvatarImageAtPath(
    823     const gfx::Image* image,
    824     const std::string& key,
    825     const base::FilePath& image_path,
    826     const base::FilePath& profile_path) {
    827   cached_avatar_images_[key] = new gfx::Image(*image);
    828 
    829   scoped_ptr<ImageData> data(new ImageData);
    830   scoped_refptr<base::RefCountedMemory> png_data = image->As1xPNGBytes();
    831   data->assign(png_data->front(), png_data->front() + png_data->size());
    832 
    833   if (!data->size()) {
    834     LOG(ERROR) << "Failed to PNG encode the image.";
    835   } else {
    836     base::Closure callback = base::Bind(&ProfileInfoCache::OnAvatarPictureSaved,
    837         AsWeakPtr(), key, profile_path);
    838 
    839     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
    840         base::Bind(&SaveBitmap, base::Passed(&data), image_path, callback));
    841   }
    842 }
    843 
    844 const base::DictionaryValue* ProfileInfoCache::GetInfoForProfileAtIndex(
    845     size_t index) const {
    846   DCHECK_LT(index, GetNumberOfProfiles());
    847   const base::DictionaryValue* cache =
    848       prefs_->GetDictionary(prefs::kProfileInfoCache);
    849   const base::DictionaryValue* info = NULL;
    850   cache->GetDictionaryWithoutPathExpansion(sorted_keys_[index], &info);
    851   return info;
    852 }
    853 
    854 void ProfileInfoCache::SetInfoQuietlyForProfileAtIndex(
    855     size_t index, base::DictionaryValue* info) {
    856   DictionaryPrefUpdate update(prefs_, prefs::kProfileInfoCache);
    857   base::DictionaryValue* cache = update.Get();
    858   cache->SetWithoutPathExpansion(sorted_keys_[index], info);
    859 }
    860 
    861 // TODO(noms): Switch to newer notification system.
    862 void ProfileInfoCache::SetInfoForProfileAtIndex(size_t index,
    863                                                 base::DictionaryValue* info) {
    864   SetInfoQuietlyForProfileAtIndex(index, info);
    865 
    866   content::NotificationService::current()->Notify(
    867       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
    868       content::NotificationService::AllSources(),
    869       content::NotificationService::NoDetails());
    870 }
    871 
    872 std::string ProfileInfoCache::CacheKeyFromProfilePath(
    873     const base::FilePath& profile_path) const {
    874   DCHECK(user_data_dir_ == profile_path.DirName());
    875   base::FilePath base_name = profile_path.BaseName();
    876   return base_name.MaybeAsASCII();
    877 }
    878 
    879 std::vector<std::string>::iterator ProfileInfoCache::FindPositionForProfile(
    880     const std::string& search_key,
    881     const base::string16& search_name) {
    882   base::string16 search_name_l = base::i18n::ToLower(search_name);
    883   for (size_t i = 0; i < GetNumberOfProfiles(); ++i) {
    884     base::string16 name_l = base::i18n::ToLower(GetNameOfProfileAtIndex(i));
    885     int name_compare = search_name_l.compare(name_l);
    886     if (name_compare < 0)
    887       return sorted_keys_.begin() + i;
    888     if (name_compare == 0) {
    889       int key_compare = search_key.compare(sorted_keys_[i]);
    890       if (key_compare < 0)
    891         return sorted_keys_.begin() + i;
    892     }
    893   }
    894   return sorted_keys_.end();
    895 }
    896 
    897 bool ProfileInfoCache::IconIndexIsUnique(size_t icon_index) const {
    898   for (size_t i = 0; i < GetNumberOfProfiles(); ++i) {
    899     if (GetAvatarIconIndexOfProfileAtIndex(i) == icon_index)
    900       return false;
    901   }
    902   return true;
    903 }
    904 
    905 bool ProfileInfoCache::ChooseAvatarIconIndexForNewProfile(
    906     bool allow_generic_icon,
    907     bool must_be_unique,
    908     size_t* out_icon_index) const {
    909   // Always allow all icons for new profiles if using the
    910   // --new-profile-management flag.
    911   if (switches::IsNewProfileManagement())
    912     allow_generic_icon = true;
    913   size_t start = allow_generic_icon ? 0 : profiles::GetGenericAvatarIconCount();
    914   size_t end = profiles::GetDefaultAvatarIconCount();
    915   size_t count = end - start;
    916 
    917   int rand = base::RandInt(0, count);
    918   for (size_t i = 0; i < count; ++i) {
    919     size_t icon_index = start + (rand + i) %  count;
    920     if (!must_be_unique || IconIndexIsUnique(icon_index)) {
    921       *out_icon_index = icon_index;
    922       return true;
    923     }
    924   }
    925 
    926   return false;
    927 }
    928 
    929 void ProfileInfoCache::UpdateSortForProfileIndex(size_t index) {
    930   base::string16 name = GetNameOfProfileAtIndex(index);
    931 
    932   // Remove and reinsert key in |sorted_keys_| to alphasort.
    933   std::string key = CacheKeyFromProfilePath(GetPathOfProfileAtIndex(index));
    934   std::vector<std::string>::iterator key_it =
    935       std::find(sorted_keys_.begin(), sorted_keys_.end(), key);
    936   DCHECK(key_it != sorted_keys_.end());
    937   sorted_keys_.erase(key_it);
    938   sorted_keys_.insert(FindPositionForProfile(key, name), key);
    939 
    940   content::NotificationService::current()->Notify(
    941       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
    942       content::NotificationService::AllSources(),
    943       content::NotificationService::NoDetails());
    944 }
    945 
    946 const gfx::Image* ProfileInfoCache::GetHighResAvatarOfProfileAtIndex(
    947     size_t index) const {
    948   int avatar_index = GetAvatarIconIndexOfProfileAtIndex(index);
    949   std::string key = profiles::GetDefaultAvatarIconFileNameAtIndex(avatar_index);
    950 
    951   if (!strcmp(key.c_str(), profiles::GetNoHighResAvatarFileName()))
    952       return NULL;
    953 
    954   base::FilePath image_path =
    955       profiles::GetPathOfHighResAvatarAtIndex(avatar_index);
    956   return LoadAvatarPictureFromPath(key, image_path);
    957 }
    958 
    959 const gfx::Image* ProfileInfoCache::LoadAvatarPictureFromPath(
    960     const std::string& key,
    961     const base::FilePath& image_path) const {
    962   // If the picture is already loaded then use it.
    963   if (cached_avatar_images_.count(key)) {
    964     if (cached_avatar_images_[key]->IsEmpty())
    965       return NULL;
    966     return cached_avatar_images_[key];
    967   }
    968 
    969   // If the picture is already being loaded then don't try loading it again.
    970   if (cached_avatar_images_loading_[key])
    971     return NULL;
    972   cached_avatar_images_loading_[key] = true;
    973 
    974   gfx::Image** image = new gfx::Image*;
    975   BrowserThread::PostTaskAndReply(BrowserThread::FILE, FROM_HERE,
    976       base::Bind(&ReadBitmap, image_path, image),
    977       base::Bind(&ProfileInfoCache::OnAvatarPictureLoaded,
    978           const_cast<ProfileInfoCache*>(this)->AsWeakPtr(), key, image));
    979   return NULL;
    980 }
    981 
    982 void ProfileInfoCache::OnAvatarPictureLoaded(const std::string& key,
    983                                              gfx::Image** image) const {
    984   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
    985 
    986   cached_avatar_images_loading_[key] = false;
    987   delete cached_avatar_images_[key];
    988 
    989   if (*image) {
    990     cached_avatar_images_[key] = *image;
    991   } else {
    992     // Place an empty image in the cache to avoid reloading it again.
    993     cached_avatar_images_[key] = new gfx::Image();
    994   }
    995   delete image;
    996 
    997   content::NotificationService::current()->Notify(
    998       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
    999       content::NotificationService::AllSources(),
   1000       content::NotificationService::NoDetails());
   1001 }
   1002 
   1003 void ProfileInfoCache::OnAvatarPictureSaved(
   1004       const std::string& file_name,
   1005       const base::FilePath& profile_path) {
   1006   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   1007 
   1008   content::NotificationService::current()->Notify(
   1009       chrome::NOTIFICATION_PROFILE_CACHE_PICTURE_SAVED,
   1010       content::NotificationService::AllSources(),
   1011       content::NotificationService::NoDetails());
   1012 
   1013   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
   1014                     observer_list_,
   1015                     OnProfileAvatarChanged(profile_path));
   1016 
   1017   // Remove the file from the list of downloads in progress. Note that this list
   1018   // only contains the high resolution avatars, and not the Gaia profile images.
   1019   if (!avatar_images_downloads_in_progress_[file_name])
   1020     return;
   1021 
   1022   delete avatar_images_downloads_in_progress_[file_name];
   1023   avatar_images_downloads_in_progress_[file_name] = NULL;
   1024 }
   1025