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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 "android_webview/lib/main/aw_main_delegate.h"
      6 
      7 #include "android_webview/browser/aw_content_browser_client.h"
      8 #include "android_webview/browser/browser_view_renderer.h"
      9 #include "android_webview/browser/gpu_memory_buffer_factory_impl.h"
     10 #include "android_webview/browser/scoped_allow_wait_for_legacy_web_view_api.h"
     11 #include "android_webview/lib/aw_browser_dependency_factory_impl.h"
     12 #include "android_webview/native/aw_media_url_interceptor.h"
     13 #include "android_webview/native/aw_quota_manager_bridge_impl.h"
     14 #include "android_webview/native/aw_web_contents_view_delegate.h"
     15 #include "android_webview/native/aw_web_preferences_populater_impl.h"
     16 #include "android_webview/native/external_video_surface_container_impl.h"
     17 #include "android_webview/renderer/aw_content_renderer_client.h"
     18 #include "base/command_line.h"
     19 #include "base/cpu.h"
     20 #include "base/lazy_instance.h"
     21 #include "base/logging.h"
     22 #include "base/memory/scoped_ptr.h"
     23 #include "base/threading/thread_restrictions.h"
     24 #include "content/browser/media/android/browser_media_player_manager.h"
     25 #include "content/public/browser/browser_main_runner.h"
     26 #include "content/public/browser/browser_thread.h"
     27 #include "content/public/common/content_switches.h"
     28 #include "gpu/command_buffer/client/gl_in_process_context.h"
     29 #include "media/base/media_switches.h"
     30 #include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
     31 
     32 namespace android_webview {
     33 
     34 namespace {
     35 
     36 // TODO(boliu): Remove this global Allow once the underlying issues are
     37 // resolved - http://crbug.com/240453. See AwMainDelegate::RunProcess below.
     38 base::LazyInstance<scoped_ptr<ScopedAllowWaitForLegacyWebViewApi> >
     39     g_allow_wait_in_ui_thread = LAZY_INSTANCE_INITIALIZER;
     40 
     41 }
     42 
     43 AwMainDelegate::AwMainDelegate()
     44     : gpu_memory_buffer_factory_(new GpuMemoryBufferFactoryImpl) {
     45 }
     46 
     47 AwMainDelegate::~AwMainDelegate() {
     48 }
     49 
     50 bool AwMainDelegate::BasicStartupComplete(int* exit_code) {
     51   content::SetContentClient(&content_client_);
     52 
     53   CommandLine* cl = CommandLine::ForCurrentProcess();
     54   bool zero_copy_disabled_by_switch = cl->HasSwitch(switches::kDisableZeroCopy);
     55   bool use_zero_copy = !zero_copy_disabled_by_switch &&
     56                        cl->HasSwitch(switches::kEnableZeroCopy) &&
     57                        gpu_memory_buffer_factory_.get()->Initialize();
     58 
     59   if (use_zero_copy) {
     60     cl->AppendSwitch(switches::kEnableZeroCopy);
     61   } else if (!zero_copy_disabled_by_switch) {
     62     cl->AppendSwitch(switches::kDisableZeroCopy);
     63   }
     64 
     65   content::BrowserMediaPlayerManager::RegisterMediaUrlInterceptor(
     66       new AwMediaUrlInterceptor());
     67 
     68   BrowserViewRenderer::CalculateTileMemoryPolicy(use_zero_copy);
     69 
     70   cl->AppendSwitch(switches::kEnableBeginFrameScheduling);
     71   cl->AppendSwitch(switches::kEnableImplSidePainting);
     72 
     73   // WebView uses the Android system's scrollbars and overscroll glow.
     74   cl->AppendSwitch(switches::kDisableOverscrollEdgeEffect);
     75 
     76   // Not yet supported in single-process mode.
     77   cl->AppendSwitch(switches::kDisableSharedWorkers);
     78 
     79   // File system API not supported (requires some new API; internal bug 6930981)
     80   cl->AppendSwitch(switches::kDisableFileSystem);
     81 
     82   // For fullscreen video we create a new container view to host the
     83   // WebContents, ie. the FullscreenView. As a result we cannot reuse the
     84   // embedded video blocker attached to the old container view, so we create a
     85   // new blocker instead attached to the ContentVideoView.
     86   cl->AppendSwitch(switches::kEnableContentVideoViewPowerSaveBlocker);
     87 
     88 #if defined(VIDEO_HOLE)
     89   // Support EME/L1 with hole-punching.
     90   cl->AppendSwitch(switches::kMediaDrmEnableNonCompositing);
     91 #endif
     92 
     93   // WebRTC hardware decoding is not supported, internal bug 15075307
     94   cl->AppendSwitch(switches::kDisableWebRtcHWDecoding);
     95 
     96   return false;
     97 }
     98 
     99 void AwMainDelegate::PreSandboxStartup() {
    100   // TODO(torne): When we have a separate renderer process, we need to handle
    101   // being passed open FDs for the resource paks here.
    102 #if defined(ARCH_CPU_ARM_FAMILY)
    103   // Create an instance of the CPU class to parse /proc/cpuinfo and cache
    104   // cpu_brand info.
    105   base::CPU cpu_info;
    106 #endif
    107 }
    108 
    109 void AwMainDelegate::SandboxInitialized(const std::string& process_type) {
    110   // TODO(torne): Adjust linux OOM score here.
    111 }
    112 
    113 int AwMainDelegate::RunProcess(
    114     const std::string& process_type,
    115     const content::MainFunctionParams& main_function_params) {
    116   if (process_type.empty()) {
    117     AwBrowserDependencyFactoryImpl::InstallInstance();
    118 
    119     browser_runner_.reset(content::BrowserMainRunner::Create());
    120     int exit_code = browser_runner_->Initialize(main_function_params);
    121     DCHECK(exit_code < 0);
    122 
    123     g_allow_wait_in_ui_thread.Get().reset(
    124         new ScopedAllowWaitForLegacyWebViewApi);
    125 
    126     // Return 0 so that we do NOT trigger the default behavior. On Android, the
    127     // UI message loop is managed by the Java application.
    128     return 0;
    129   }
    130 
    131   return -1;
    132 }
    133 
    134 void AwMainDelegate::ProcessExiting(const std::string& process_type) {
    135   // TODO(torne): Clean up resources when we handle them.
    136 
    137   logging::CloseLogFile();
    138 }
    139 
    140 content::ContentBrowserClient*
    141     AwMainDelegate::CreateContentBrowserClient() {
    142   content_browser_client_.reset(new AwContentBrowserClient(this));
    143   return content_browser_client_.get();
    144 }
    145 
    146 content::ContentRendererClient*
    147     AwMainDelegate::CreateContentRendererClient() {
    148   content_renderer_client_.reset(new AwContentRendererClient());
    149   return content_renderer_client_.get();
    150 }
    151 
    152 scoped_refptr<AwQuotaManagerBridge> AwMainDelegate::CreateAwQuotaManagerBridge(
    153     AwBrowserContext* browser_context) {
    154   return AwQuotaManagerBridgeImpl::Create(browser_context);
    155 }
    156 
    157 content::WebContentsViewDelegate* AwMainDelegate::CreateViewDelegate(
    158     content::WebContents* web_contents) {
    159   return AwWebContentsViewDelegate::Create(web_contents);
    160 }
    161 
    162 AwWebPreferencesPopulater* AwMainDelegate::CreateWebPreferencesPopulater() {
    163   return new AwWebPreferencesPopulaterImpl();
    164 }
    165 
    166 #if defined(VIDEO_HOLE)
    167 content::ExternalVideoSurfaceContainer*
    168 AwMainDelegate::CreateExternalVideoSurfaceContainer(
    169     content::WebContents* web_contents) {
    170   return new ExternalVideoSurfaceContainerImpl(web_contents);
    171 }
    172 #endif
    173 
    174 }  // namespace android_webview
    175