media: Optimize HW Video to 2D Canvas copy.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 42629a1e3addd9e680342526d0c579c970375d5e..6ca3ab6ee8f1568d14fbbead3fea3f815cf591f5 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -153,6 +153,8 @@
 #include "content/renderer/media/android/renderer_media_player_manager.h"
 #include "content/renderer/media/android/stream_texture_factory_impl.h"
 #include "content/renderer/media/android/webmediaplayer_android.h"
+#else
+#include "third_party/WebKit/public/platform/Platform.h"
 #endif
 
 #if defined(ENABLE_PEPPER_CDMS)
@@ -248,7 +250,7 @@ void GetRedirectChain(WebDataSource* ds, std::vector<GURL>* result) {
 // Returns the original request url. If there is no redirect, the original
 // url is the same as ds->request()->url(). If the WebDataSource belongs to a
 // frame was loaded by loadData, the original url will be ds->unreachableURL()
-static GURL GetOriginalRequestURL(WebDataSource* ds) {
+GURL GetOriginalRequestURL(WebDataSource* ds) {
   // WebDataSource has unreachable URL means that the frame is loaded through
   // blink::WebFrame::loadData(), and the base URL will be in the redirect
   // chain. However, we never visited the baseURL. So in this case, we should
@@ -264,7 +266,7 @@ static GURL GetOriginalRequestURL(WebDataSource* ds) {
   return ds->originalRequest().url();
 }
 
-NOINLINE static void CrashIntentionally() {
+NOINLINE void CrashIntentionally() {
   // NOTE(shess): Crash directly rather than using NOTREACHED() so
   // that the signature is easier to triage in crash reports.
   volatile int* zero = NULL;
@@ -272,7 +274,7 @@ NOINLINE static void CrashIntentionally() {
 }
 
 #if defined(ADDRESS_SANITIZER) || defined(SYZYASAN)
-NOINLINE static void MaybeTriggerAsanError(const GURL& url) {
+NOINLINE void MaybeTriggerAsanError(const GURL& url) {
   // NOTE(rogerm): We intentionally perform an invalid heap access here in
   //     order to trigger an Address Sanitizer (ASAN) error report.
   const char kCrashDomain[] = "crash";
@@ -307,7 +309,7 @@ NOINLINE static void MaybeTriggerAsanError(const GURL& url) {
 }
 #endif  // ADDRESS_SANITIZER || SYZYASAN
 
-static void MaybeHandleDebugURL(const GURL& url) {
+void MaybeHandleDebugURL(const GURL& url) {
   if (!url.SchemeIs(kChromeUIScheme))
     return;
   if (url == GURL(kChromeUICrashURL)) {
@@ -334,15 +336,15 @@ static void MaybeHandleDebugURL(const GURL& url) {
 }
 
 // Returns false unless this is a top-level navigation.
-static bool IsTopLevelNavigation(WebFrame* frame) {
+bool IsTopLevelNavigation(WebFrame* frame) {
   return frame->parent() == NULL;
 }
 
 // Returns false unless this is a top-level navigation that crosses origins.
-static bool IsNonLocalTopLevelNavigation(const GURL& url,
-                                         WebFrame* frame,
-                                         WebNavigationType type,
-                                         bool is_form_post) {
+bool IsNonLocalTopLevelNavigation(const GURL& url,
+                                  WebFrame* frame,
+                                  WebNavigationType type,
+                                  bool is_form_post) {
   if (!IsTopLevelNavigation(frame))
     return false;
 
@@ -474,10 +476,20 @@ CommonNavigationParams MakeCommonNavigationParams(
   return params;
 }
 
+#if !defined(OS_ANDROID)
+scoped_ptr<blink::WebGraphicsContext3DProvider>
+GetSharedOffscreenGraphicsContext3DProvider() {
+  return make_scoped_ptr(
+      blink::Platform::current()
+          ->createSharedOffscreenGraphicsContext3DProvider());
+}
+#endif
+
+using CreateRenderFrameImpl = RenderFrameImpl* (*)(RenderViewImpl*, int32);
+CreateRenderFrameImpl g_create_render_frame_impl = nullptr;
+
 }  // namespace
 
-static RenderFrameImpl* (*g_create_render_frame_impl)(RenderViewImpl*, int32) =
-    NULL;
 
 // static
 RenderFrameImpl* RenderFrameImpl::Create(RenderViewImpl* render_view,
@@ -1739,13 +1751,12 @@ blink::WebMediaPlayer* RenderFrameImpl::createMediaPlayer(
                  static_cast<RenderFrame*>(this)),
       render_thread->GetAudioRendererMixerManager()->CreateInput(
           render_view_->routing_id_, routing_id_),
-      *render_thread->GetAudioHardwareConfig(),
-      new RenderMediaLog(),
+      *render_thread->GetAudioHardwareConfig(), new RenderMediaLog(),
       render_thread->GetGpuFactories(),
       render_thread->GetMediaThreadTaskRunner(),
       render_thread->compositor_message_loop_proxy(),
       base::Bind(&EncryptedMediaPlayerSupportImpl::Create),
-      initial_cdm);
+      base::Bind(&GetSharedOffscreenGraphicsContext3DProvider), initial_cdm);
 
   scoped_ptr<media::Renderer> media_renderer =
       GetContentClient()->renderer()->CreateMediaRenderer(