WIP: Option2: Android media: VideoFrame should not store so many sync points.

content/renderer/media/android/webmediaplayer_android.cc

Index: content/renderer/media/android/webmediaplayer_android.cc
diff --git a/content/renderer/media/android/webmediaplayer_android.cc b/content/renderer/media/android/webmediaplayer_android.cc
index cddec41d3d2c34502f88734081ea88c859cc64a2..1bb4ec3a662562d6dc20bf2ffc20084871d04b1c 100644
--- a/content/renderer/media/android/webmediaplayer_android.cc
+++ b/content/renderer/media/android/webmediaplayer_android.cc
@@ -536,7 +536,11 @@ bool WebMediaPlayerAndroid::copyVideoTextureToPlatformTexture(
     web_graphics_context->bindTexture(GL_TEXTURE_2D, texture);
   web_graphics_context->deleteTexture(source_texture);
   web_graphics_context->flush();
-  video_frame->AppendReleaseSyncPoint(web_graphics_context->insertSyncPoint());
+
+  std::ostringstream convert;
+  convert << "blink_" << web_graphics_context;
+  video_frame->AppendReleaseSyncPoint(convert.str(),
+                                      web_graphics_context->insertSyncPoint());
   return true;
 }