Unified BeginFrame scheduling

cc/trees/layer_tree_host_client.h

Index: cc/trees/layer_tree_host_client.h
diff --git a/cc/trees/layer_tree_host_client.h b/cc/trees/layer_tree_host_client.h
index 74dcbc0cff24631873737c4cdc42341e1051f4ed..e0ae97ea4383d2e211d32aa4551421bfe08b6ab8 100644
--- a/cc/trees/layer_tree_host_client.h
+++ b/cc/trees/layer_tree_host_client.h
@@ -17,6 +17,7 @@ namespace cc {
 class ContextProvider;
 class InputHandlerClient;
 class OutputSurface;
+struct BeginFrameArgs;
 
 class LayerTreeHostClient {
  public:
@@ -43,6 +44,10 @@ class LayerTreeHostClient {
   // a TextureLayer that calls SetRateLimitContext(true).
   virtual void RateLimitSharedMainThreadContext() {}
 
+  // Change this to abstract method when all platforms are ready for unified
+  // BeginFrame.
+  virtual void SendBeginFrame(const BeginFrameArgs& args) {}

[brianderson, 2014/08/21 00:13:59]

Can you make the default implementation call NOT_REACHED() until it becomes pure
virtual?

[simonhong, 2014/08/26 08:24:48]

Removed.
Scheduler will call BeginFrameManager::SendBeginFrame directly.

+
   // This hook is for testing.
   virtual void DidFailToInitializeOutputSurface() {}