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      1 // Copyright 2013 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 "content/shell/browser/webkit_test_controller.h"
      6 
      7 #include <iostream>
      8 
      9 #include "base/base64.h"
     10 #include "base/command_line.h"
     11 #include "base/message_loop/message_loop.h"
     12 #include "base/run_loop.h"
     13 #include "base/strings/string_number_conversions.h"
     14 #include "base/strings/stringprintf.h"
     15 #include "content/public/browser/devtools_manager.h"
     16 #include "content/public/browser/dom_storage_context.h"
     17 #include "content/public/browser/gpu_data_manager.h"
     18 #include "content/public/browser/navigation_controller.h"
     19 #include "content/public/browser/navigation_entry.h"
     20 #include "content/public/browser/notification_service.h"
     21 #include "content/public/browser/notification_types.h"
     22 #include "content/public/browser/render_process_host.h"
     23 #include "content/public/browser/render_view_host.h"
     24 #include "content/public/browser/render_widget_host_view.h"
     25 #include "content/public/browser/storage_partition.h"
     26 #include "content/public/browser/web_contents.h"
     27 #include "content/public/browser/web_contents_view.h"
     28 #include "content/public/common/content_switches.h"
     29 #include "content/shell/browser/shell.h"
     30 #include "content/shell/browser/shell_browser_context.h"
     31 #include "content/shell/browser/shell_content_browser_client.h"
     32 #include "content/shell/browser/shell_devtools_frontend.h"
     33 #include "content/shell/common/shell_messages.h"
     34 #include "content/shell/common/shell_switches.h"
     35 #include "content/shell/common/webkit_test_helpers.h"
     36 #include "ui/gfx/codec/png_codec.h"
     37 
     38 namespace content {
     39 
     40 const int kTestSVGWindowWidthDip = 480;
     41 const int kTestSVGWindowHeightDip = 360;
     42 
     43 // WebKitTestResultPrinter ----------------------------------------------------
     44 
     45 WebKitTestResultPrinter::WebKitTestResultPrinter(
     46     std::ostream* output, std::ostream* error)
     47     : state_(DURING_TEST),
     48       capture_text_only_(false),
     49       encode_binary_data_(false),
     50       output_(output),
     51       error_(error) {
     52 }
     53 
     54 WebKitTestResultPrinter::~WebKitTestResultPrinter() {
     55 }
     56 
     57 void WebKitTestResultPrinter::PrintTextHeader() {
     58   if (state_ != DURING_TEST)
     59     return;
     60   if (!capture_text_only_)
     61     *output_ << "Content-Type: text/plain\n";
     62   state_ = IN_TEXT_BLOCK;
     63 }
     64 
     65 void WebKitTestResultPrinter::PrintTextBlock(const std::string& block) {
     66   if (state_ != IN_TEXT_BLOCK)
     67     return;
     68   *output_ << block;
     69 }
     70 
     71 void WebKitTestResultPrinter::PrintTextFooter() {
     72   if (state_ != IN_TEXT_BLOCK)
     73     return;
     74   if (!capture_text_only_) {
     75     *output_ << "#EOF\n";
     76     output_->flush();
     77   }
     78   state_ = IN_IMAGE_BLOCK;
     79 }
     80 
     81 void WebKitTestResultPrinter::PrintImageHeader(
     82     const std::string& actual_hash,
     83     const std::string& expected_hash) {
     84   if (state_ != IN_IMAGE_BLOCK || capture_text_only_)
     85     return;
     86   *output_ << "\nActualHash: " << actual_hash << "\n";
     87   if (!expected_hash.empty())
     88     *output_ << "\nExpectedHash: " << expected_hash << "\n";
     89 }
     90 
     91 void WebKitTestResultPrinter::PrintImageBlock(
     92     const std::vector<unsigned char>& png_image) {
     93   if (state_ != IN_IMAGE_BLOCK || capture_text_only_)
     94     return;
     95   *output_ << "Content-Type: image/png\n";
     96   if (encode_binary_data_) {
     97     PrintEncodedBinaryData(png_image);
     98     return;
     99   }
    100 
    101   *output_ << "Content-Length: " << png_image.size() << "\n";
    102   output_->write(
    103       reinterpret_cast<const char*>(&png_image[0]), png_image.size());
    104 }
    105 
    106 void WebKitTestResultPrinter::PrintImageFooter() {
    107   if (state_ != IN_IMAGE_BLOCK)
    108     return;
    109   if (!capture_text_only_) {
    110     *output_ << "#EOF\n";
    111     output_->flush();
    112   }
    113   state_ = AFTER_TEST;
    114 }
    115 
    116 void WebKitTestResultPrinter::PrintAudioHeader() {
    117   DCHECK_EQ(state_, DURING_TEST);
    118   if (!capture_text_only_)
    119     *output_ << "Content-Type: audio/wav\n";
    120   state_ = IN_AUDIO_BLOCK;
    121 }
    122 
    123 void WebKitTestResultPrinter::PrintAudioBlock(
    124     const std::vector<unsigned char>& audio_data) {
    125   if (state_ != IN_AUDIO_BLOCK || capture_text_only_)
    126     return;
    127   if (encode_binary_data_) {
    128     PrintEncodedBinaryData(audio_data);
    129     return;
    130   }
    131 
    132   *output_ << "Content-Length: " << audio_data.size() << "\n";
    133   output_->write(
    134       reinterpret_cast<const char*>(&audio_data[0]), audio_data.size());
    135 }
    136 
    137 void WebKitTestResultPrinter::PrintAudioFooter() {
    138   if (state_ != IN_AUDIO_BLOCK)
    139     return;
    140   if (!capture_text_only_) {
    141     *output_ << "#EOF\n";
    142     output_->flush();
    143   }
    144   state_ = IN_IMAGE_BLOCK;
    145 }
    146 
    147 void WebKitTestResultPrinter::AddMessage(const std::string& message) {
    148   AddMessageRaw(message + "\n");
    149 }
    150 
    151 void WebKitTestResultPrinter::AddMessageRaw(const std::string& message) {
    152   if (state_ != DURING_TEST)
    153     return;
    154   *output_ << message;
    155 }
    156 
    157 void WebKitTestResultPrinter::AddErrorMessage(const std::string& message) {
    158   if (!capture_text_only_)
    159     *error_ << message << "\n";
    160   if (state_ != DURING_TEST)
    161     return;
    162   PrintTextHeader();
    163   *output_ << message << "\n";
    164   PrintTextFooter();
    165   PrintImageFooter();
    166 }
    167 
    168 void WebKitTestResultPrinter::PrintEncodedBinaryData(
    169     const std::vector<unsigned char>& data) {
    170   *output_ << "Content-Transfer-Encoding: base64\n";
    171 
    172   std::string data_base64;
    173   base::Base64Encode(
    174       base::StringPiece(reinterpret_cast<const char*>(&data[0]), data.size()),
    175       &data_base64);
    176 
    177   *output_ << "Content-Length: " << data_base64.length() << "\n";
    178   output_->write(data_base64.c_str(), data_base64.length());
    179 }
    180 
    181 void WebKitTestResultPrinter::CloseStderr() {
    182   if (state_ != AFTER_TEST)
    183     return;
    184   if (!capture_text_only_) {
    185     *error_ << "#EOF\n";
    186     error_->flush();
    187   }
    188 }
    189 
    190 
    191 // WebKitTestController -------------------------------------------------------
    192 
    193 WebKitTestController* WebKitTestController::instance_ = NULL;
    194 
    195 // static
    196 WebKitTestController* WebKitTestController::Get() {
    197   DCHECK(instance_);
    198   return instance_;
    199 }
    200 
    201 WebKitTestController::WebKitTestController()
    202     : main_window_(NULL),
    203       test_phase_(BETWEEN_TESTS) {
    204   CHECK(!instance_);
    205   instance_ = this;
    206   printer_.reset(new WebKitTestResultPrinter(&std::cout, &std::cerr));
    207   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kEncodeBinary))
    208     printer_->set_encode_binary_data(true);
    209   registrar_.Add(this,
    210                  NOTIFICATION_RENDERER_PROCESS_CREATED,
    211                  NotificationService::AllSources());
    212   GpuDataManager::GetInstance()->AddObserver(this);
    213   ResetAfterLayoutTest();
    214 }
    215 
    216 WebKitTestController::~WebKitTestController() {
    217   DCHECK(CalledOnValidThread());
    218   CHECK(instance_ == this);
    219   CHECK(test_phase_ == BETWEEN_TESTS);
    220   GpuDataManager::GetInstance()->RemoveObserver(this);
    221   DiscardMainWindow();
    222   instance_ = NULL;
    223 }
    224 
    225 bool WebKitTestController::PrepareForLayoutTest(
    226     const GURL& test_url,
    227     const base::FilePath& current_working_directory,
    228     bool enable_pixel_dumping,
    229     const std::string& expected_pixel_hash) {
    230   DCHECK(CalledOnValidThread());
    231   test_phase_ = DURING_TEST;
    232   current_working_directory_ = current_working_directory;
    233   enable_pixel_dumping_ = enable_pixel_dumping;
    234   expected_pixel_hash_ = expected_pixel_hash;
    235   test_url_ = test_url;
    236   printer_->reset();
    237   ShellBrowserContext* browser_context =
    238       ShellContentBrowserClient::Get()->browser_context();
    239   if (test_url.spec().find("compositing/") != std::string::npos)
    240     is_compositing_test_ = true;
    241   initial_size_ = gfx::Size(
    242       Shell::kDefaultTestWindowWidthDip, Shell::kDefaultTestWindowHeightDip);
    243   // The W3C SVG layout tests use a different size than the other layout tests.
    244   if (test_url.spec().find("W3C-SVG-1.1") != std::string::npos)
    245     initial_size_ = gfx::Size(kTestSVGWindowWidthDip, kTestSVGWindowHeightDip);
    246   if (!main_window_) {
    247     main_window_ = content::Shell::CreateNewWindow(
    248         browser_context,
    249         GURL(),
    250         NULL,
    251         MSG_ROUTING_NONE,
    252         initial_size_);
    253     WebContentsObserver::Observe(main_window_->web_contents());
    254     send_configuration_to_next_host_ = true;
    255     current_pid_ = base::kNullProcessId;
    256     main_window_->LoadURL(test_url);
    257   } else {
    258 #if (defined(OS_WIN) && !defined(USE_AURA)) || \
    259     defined(TOOLKIT_GTK) || defined(OS_MACOSX)
    260     // Shell::SizeTo is not implemented on all platforms.
    261     main_window_->SizeTo(initial_size_);
    262 #endif
    263     main_window_->web_contents()->GetRenderViewHost()->GetView()
    264         ->SetSize(initial_size_);
    265     main_window_->web_contents()->GetRenderViewHost()->WasResized();
    266     RenderViewHost* render_view_host =
    267         main_window_->web_contents()->GetRenderViewHost();
    268     WebPreferences prefs = render_view_host->GetWebkitPreferences();
    269     OverrideWebkitPrefs(&prefs);
    270     render_view_host->UpdateWebkitPreferences(prefs);
    271     SendTestConfiguration();
    272 
    273     NavigationController::LoadURLParams params(test_url);
    274     params.transition_type = PageTransitionFromInt(
    275         PAGE_TRANSITION_TYPED | PAGE_TRANSITION_FROM_ADDRESS_BAR);
    276     params.should_clear_history_list = true;
    277     main_window_->web_contents()->GetController().LoadURLWithParams(params);
    278     main_window_->web_contents()->GetView()->Focus();
    279   }
    280   main_window_->web_contents()->GetRenderViewHost()->SetActive(true);
    281   main_window_->web_contents()->GetRenderViewHost()->Focus();
    282   return true;
    283 }
    284 
    285 bool WebKitTestController::ResetAfterLayoutTest() {
    286   DCHECK(CalledOnValidThread());
    287   printer_->PrintTextFooter();
    288   printer_->PrintImageFooter();
    289   printer_->CloseStderr();
    290   send_configuration_to_next_host_ = false;
    291   test_phase_ = BETWEEN_TESTS;
    292   is_compositing_test_ = false;
    293   enable_pixel_dumping_ = false;
    294   expected_pixel_hash_.clear();
    295   test_url_ = GURL();
    296   prefs_ = WebPreferences();
    297   should_override_prefs_ = false;
    298 
    299 #if defined(OS_ANDROID)
    300   // Re-using the shell's main window on Android causes issues with networking
    301   // requests never succeeding. See http://crbug.com/277652.
    302   DiscardMainWindow();
    303 #endif
    304   return true;
    305 }
    306 
    307 void WebKitTestController::SetTempPath(const base::FilePath& temp_path) {
    308   temp_path_ = temp_path;
    309 }
    310 
    311 void WebKitTestController::RendererUnresponsive() {
    312   DCHECK(CalledOnValidThread());
    313   LOG(WARNING) << "renderer unresponsive";
    314 }
    315 
    316 void WebKitTestController::WorkerCrashed() {
    317   DCHECK(CalledOnValidThread());
    318   printer_->AddErrorMessage("#CRASHED - worker");
    319   DiscardMainWindow();
    320 }
    321 
    322 void WebKitTestController::OverrideWebkitPrefs(WebPreferences* prefs) {
    323   if (should_override_prefs_) {
    324     *prefs = prefs_;
    325   } else {
    326     ApplyLayoutTestDefaultPreferences(prefs);
    327     if (is_compositing_test_) {
    328       CommandLine& command_line = *CommandLine::ForCurrentProcess();
    329       if (!command_line.HasSwitch(switches::kEnableSoftwareCompositing))
    330         prefs->accelerated_2d_canvas_enabled = true;
    331       prefs->accelerated_compositing_for_video_enabled = true;
    332       prefs->mock_scrollbars_enabled = true;
    333     }
    334   }
    335 }
    336 
    337 void WebKitTestController::OpenURL(const GURL& url) {
    338   if (test_phase_ != DURING_TEST)
    339     return;
    340 
    341   Shell::CreateNewWindow(main_window_->web_contents()->GetBrowserContext(),
    342                          url,
    343                          main_window_->web_contents()->GetSiteInstance(),
    344                          MSG_ROUTING_NONE,
    345                          gfx::Size());
    346 }
    347 
    348 void WebKitTestController::TestFinishedInSecondaryWindow() {
    349   RenderViewHost* render_view_host =
    350       main_window_->web_contents()->GetRenderViewHost();
    351   render_view_host->Send(
    352       new ShellViewMsg_NotifyDone(render_view_host->GetRoutingID()));
    353 }
    354 
    355 bool WebKitTestController::IsMainWindow(WebContents* web_contents) const {
    356   return main_window_ && web_contents == main_window_->web_contents();
    357 }
    358 
    359 bool WebKitTestController::OnMessageReceived(const IPC::Message& message) {
    360   DCHECK(CalledOnValidThread());
    361   bool handled = true;
    362   IPC_BEGIN_MESSAGE_MAP(WebKitTestController, message)
    363     IPC_MESSAGE_HANDLER(ShellViewHostMsg_PrintMessage, OnPrintMessage)
    364     IPC_MESSAGE_HANDLER(ShellViewHostMsg_TextDump, OnTextDump)
    365     IPC_MESSAGE_HANDLER(ShellViewHostMsg_ImageDump, OnImageDump)
    366     IPC_MESSAGE_HANDLER(ShellViewHostMsg_AudioDump, OnAudioDump)
    367     IPC_MESSAGE_HANDLER(ShellViewHostMsg_OverridePreferences,
    368                         OnOverridePreferences)
    369     IPC_MESSAGE_HANDLER(ShellViewHostMsg_TestFinished, OnTestFinished)
    370     IPC_MESSAGE_HANDLER(ShellViewHostMsg_ShowDevTools, OnShowDevTools)
    371     IPC_MESSAGE_HANDLER(ShellViewHostMsg_CloseDevTools, OnCloseDevTools)
    372     IPC_MESSAGE_HANDLER(ShellViewHostMsg_GoToOffset, OnGoToOffset)
    373     IPC_MESSAGE_HANDLER(ShellViewHostMsg_Reload, OnReload)
    374     IPC_MESSAGE_HANDLER(ShellViewHostMsg_LoadURLForFrame, OnLoadURLForFrame)
    375     IPC_MESSAGE_HANDLER(ShellViewHostMsg_CaptureSessionHistory,
    376                         OnCaptureSessionHistory)
    377     IPC_MESSAGE_HANDLER(ShellViewHostMsg_CloseRemainingWindows,
    378                         OnCloseRemainingWindows)
    379     IPC_MESSAGE_HANDLER(ShellViewHostMsg_ResetDone, OnResetDone)
    380     IPC_MESSAGE_UNHANDLED(handled = false)
    381   IPC_END_MESSAGE_MAP()
    382 
    383   return handled;
    384 }
    385 
    386 void WebKitTestController::PluginCrashed(const base::FilePath& plugin_path,
    387                                          base::ProcessId plugin_pid) {
    388   DCHECK(CalledOnValidThread());
    389   printer_->AddErrorMessage(
    390       base::StringPrintf("#CRASHED - plugin (pid %d)", plugin_pid));
    391   base::MessageLoop::current()->PostTask(
    392       FROM_HERE,
    393       base::Bind(base::IgnoreResult(&WebKitTestController::DiscardMainWindow),
    394                  base::Unretained(this)));
    395 }
    396 
    397 void WebKitTestController::RenderViewCreated(RenderViewHost* render_view_host) {
    398   DCHECK(CalledOnValidThread());
    399   // Might be kNullProcessHandle, in which case we will receive a notification
    400   // later when the RenderProcessHost was created.
    401   if (render_view_host->GetProcess()->GetHandle() != base::kNullProcessHandle)
    402     current_pid_ = base::GetProcId(render_view_host->GetProcess()->GetHandle());
    403   if (!send_configuration_to_next_host_)
    404     return;
    405   send_configuration_to_next_host_ = false;
    406   SendTestConfiguration();
    407 }
    408 
    409 void WebKitTestController::RenderProcessGone(base::TerminationStatus status) {
    410   DCHECK(CalledOnValidThread());
    411   if (current_pid_ != base::kNullProcessId) {
    412     printer_->AddErrorMessage(std::string("#CRASHED - renderer (pid ") +
    413                               base::IntToString(current_pid_) + ")");
    414   } else {
    415     printer_->AddErrorMessage("#CRASHED - renderer");
    416   }
    417   DiscardMainWindow();
    418 }
    419 
    420 void WebKitTestController::WebContentsDestroyed(WebContents* web_contents) {
    421   DCHECK(CalledOnValidThread());
    422   printer_->AddErrorMessage("FAIL: main window was destroyed");
    423   DiscardMainWindow();
    424 }
    425 
    426 void WebKitTestController::Observe(int type,
    427                                    const NotificationSource& source,
    428                                    const NotificationDetails& details) {
    429   DCHECK(CalledOnValidThread());
    430   switch (type) {
    431     case NOTIFICATION_RENDERER_PROCESS_CREATED: {
    432       if (!main_window_)
    433         return;
    434       RenderViewHost* render_view_host =
    435           main_window_->web_contents()->GetRenderViewHost();
    436       if (!render_view_host)
    437         return;
    438       RenderProcessHost* render_process_host =
    439           Source<RenderProcessHost>(source).ptr();
    440       if (render_process_host != render_view_host->GetProcess())
    441         return;
    442       current_pid_ = base::GetProcId(render_process_host->GetHandle());
    443       break;
    444     }
    445     default:
    446       NOTREACHED();
    447   }
    448 }
    449 
    450 void WebKitTestController::OnGpuProcessCrashed(
    451     base::TerminationStatus exit_code) {
    452   DCHECK(CalledOnValidThread());
    453   printer_->AddErrorMessage("#CRASHED - gpu");
    454   DiscardMainWindow();
    455 }
    456 
    457 void WebKitTestController::TimeoutHandler() {
    458   DCHECK(CalledOnValidThread());
    459   printer_->AddErrorMessage(
    460       "FAIL: Timed out waiting for notifyDone to be called");
    461   DiscardMainWindow();
    462 }
    463 
    464 void WebKitTestController::DiscardMainWindow() {
    465   // If we're running a test, we need to close all windows and exit the message
    466   // loop. Otherwise, we're already outside of the message loop, and we just
    467   // discard the main window.
    468   WebContentsObserver::Observe(NULL);
    469   if (test_phase_ != BETWEEN_TESTS) {
    470     Shell::CloseAllWindows();
    471     base::MessageLoop::current()->PostTask(FROM_HERE,
    472                                            base::MessageLoop::QuitClosure());
    473     test_phase_ = CLEAN_UP;
    474   } else if (main_window_) {
    475     main_window_->Close();
    476   }
    477   main_window_ = NULL;
    478   current_pid_ = base::kNullProcessId;
    479 }
    480 
    481 void WebKitTestController::SendTestConfiguration() {
    482   RenderViewHost* render_view_host =
    483       main_window_->web_contents()->GetRenderViewHost();
    484   ShellTestConfiguration params;
    485   params.current_working_directory = current_working_directory_;
    486   params.temp_path = temp_path_;
    487   params.test_url = test_url_;
    488   params.enable_pixel_dumping = enable_pixel_dumping_;
    489   params.allow_external_pages = CommandLine::ForCurrentProcess()->HasSwitch(
    490       switches::kAllowExternalPages);
    491   params.expected_pixel_hash = expected_pixel_hash_;
    492   params.initial_size = initial_size_;
    493   render_view_host->Send(new ShellViewMsg_SetTestConfiguration(
    494       render_view_host->GetRoutingID(), params));
    495 }
    496 
    497 void WebKitTestController::OnTestFinished() {
    498   test_phase_ = CLEAN_UP;
    499   if (!printer_->output_finished())
    500     printer_->PrintImageFooter();
    501   RenderViewHost* render_view_host =
    502       main_window_->web_contents()->GetRenderViewHost();
    503   base::MessageLoop::current()->PostTask(
    504       FROM_HERE,
    505       base::Bind(base::IgnoreResult(&WebKitTestController::Send),
    506                  base::Unretained(this),
    507                  new ShellViewMsg_Reset(render_view_host->GetRoutingID())));
    508 }
    509 
    510 void WebKitTestController::OnImageDump(
    511     const std::string& actual_pixel_hash,
    512     const SkBitmap& image) {
    513   SkAutoLockPixels image_lock(image);
    514 
    515   printer_->PrintImageHeader(actual_pixel_hash, expected_pixel_hash_);
    516 
    517   // Only encode and dump the png if the hashes don't match. Encoding the
    518   // image is really expensive.
    519   if (actual_pixel_hash != expected_pixel_hash_) {
    520     std::vector<unsigned char> png;
    521 
    522     // Only the expected PNGs for Mac have a valid alpha channel.
    523 #if defined(OS_MACOSX)
    524     bool discard_transparency = false;
    525 #else
    526     bool discard_transparency = true;
    527 #endif
    528     if (CommandLine::ForCurrentProcess()->HasSwitch(
    529         switches::kEnableOverlayFullscreenVideo))
    530       discard_transparency = false;
    531 
    532     std::vector<gfx::PNGCodec::Comment> comments;
    533     comments.push_back(gfx::PNGCodec::Comment("checksum", actual_pixel_hash));
    534     bool success = gfx::PNGCodec::Encode(
    535         static_cast<const unsigned char*>(image.getPixels()),
    536         gfx::PNGCodec::FORMAT_BGRA,
    537         gfx::Size(image.width(), image.height()),
    538         static_cast<int>(image.rowBytes()),
    539         discard_transparency,
    540         comments,
    541         &png);
    542     if (success)
    543       printer_->PrintImageBlock(png);
    544   }
    545   printer_->PrintImageFooter();
    546 }
    547 
    548 void WebKitTestController::OnAudioDump(const std::vector<unsigned char>& dump) {
    549   printer_->PrintAudioHeader();
    550   printer_->PrintAudioBlock(dump);
    551   printer_->PrintAudioFooter();
    552 }
    553 
    554 void WebKitTestController::OnTextDump(const std::string& dump) {
    555   printer_->PrintTextHeader();
    556   printer_->PrintTextBlock(dump);
    557   printer_->PrintTextFooter();
    558 }
    559 
    560 void WebKitTestController::OnPrintMessage(const std::string& message) {
    561   printer_->AddMessageRaw(message);
    562 }
    563 
    564 void WebKitTestController::OnOverridePreferences(const WebPreferences& prefs) {
    565   should_override_prefs_ = true;
    566   prefs_ = prefs;
    567 }
    568 
    569 void WebKitTestController::OnShowDevTools() {
    570   ShellBrowserContext* browser_context =
    571       ShellContentBrowserClient::Get()->browser_context();
    572   StoragePartition* storage_partition =
    573       BrowserContext::GetStoragePartition(browser_context, NULL);
    574   storage_partition->GetDOMStorageContext()->DeleteLocalStorage(
    575       content::GetDevToolsPathAsURL().GetOrigin());
    576   main_window_->ShowDevTools();
    577 }
    578 
    579 void WebKitTestController::OnCloseDevTools() {
    580   main_window_->CloseDevTools();
    581 }
    582 
    583 void WebKitTestController::OnGoToOffset(int offset) {
    584   main_window_->GoBackOrForward(offset);
    585 }
    586 
    587 void WebKitTestController::OnReload() {
    588   main_window_->Reload();
    589 }
    590 
    591 void WebKitTestController::OnLoadURLForFrame(const GURL& url,
    592                                              const std::string& frame_name) {
    593   main_window_->LoadURLForFrame(url, frame_name);
    594 }
    595 
    596 void WebKitTestController::OnCaptureSessionHistory() {
    597   std::vector<int> routing_ids;
    598   std::vector<std::vector<PageState> > session_histories;
    599   std::vector<unsigned> current_entry_indexes;
    600 
    601   RenderViewHost* render_view_host =
    602       main_window_->web_contents()->GetRenderViewHost();
    603 
    604   for (std::vector<Shell*>::iterator window = Shell::windows().begin();
    605        window != Shell::windows().end();
    606        ++window) {
    607     WebContents* web_contents = (*window)->web_contents();
    608     // Only capture the history from windows in the same process as the main
    609     // window. During layout tests, we only use two processes when an
    610     // devtools window is open. This should not happen during history navigation
    611     // tests.
    612     if (render_view_host->GetProcess() !=
    613         web_contents->GetRenderViewHost()->GetProcess()) {
    614       NOTREACHED();
    615       continue;
    616     }
    617     routing_ids.push_back(web_contents->GetRenderViewHost()->GetRoutingID());
    618     current_entry_indexes.push_back(
    619         web_contents->GetController().GetCurrentEntryIndex());
    620     std::vector<PageState> history;
    621     for (int entry = 0; entry < web_contents->GetController().GetEntryCount();
    622          ++entry) {
    623       PageState state = web_contents->GetController().GetEntryAtIndex(entry)->
    624           GetPageState();
    625       if (!state.IsValid()) {
    626         state = PageState::CreateFromURL(
    627             web_contents->GetController().GetEntryAtIndex(entry)->GetURL());
    628       }
    629       history.push_back(state);
    630     }
    631     session_histories.push_back(history);
    632   }
    633 
    634   Send(new ShellViewMsg_SessionHistory(render_view_host->GetRoutingID(),
    635                                        routing_ids,
    636                                        session_histories,
    637                                        current_entry_indexes));
    638 }
    639 
    640 void WebKitTestController::OnCloseRemainingWindows() {
    641   DevToolsManager::GetInstance()->CloseAllClientHosts();
    642   std::vector<Shell*> open_windows(Shell::windows());
    643   for (size_t i = 0; i < open_windows.size(); ++i) {
    644     if (open_windows[i] != main_window_)
    645       open_windows[i]->Close();
    646   }
    647   base::MessageLoop::current()->RunUntilIdle();
    648 }
    649 
    650 void WebKitTestController::OnResetDone() {
    651   base::MessageLoop::current()->PostTask(FROM_HERE,
    652                                          base::MessageLoop::QuitClosure());
    653 }
    654 
    655 }  // namespace content
    656