Make SingleThreadProxy a SchedulerClient

cc/trees/single_thread_proxy.h

Index: cc/trees/single_thread_proxy.h
diff --git a/cc/trees/single_thread_proxy.h b/cc/trees/single_thread_proxy.h
index d96220b7d57f20d683d1917f8eadf02b4d1ca5ed..8a46089186586d1e02786c4ee850a802a418ff23 100644
--- a/cc/trees/single_thread_proxy.h
+++ b/cc/trees/single_thread_proxy.h
@@ -10,8 +10,10 @@
 #include "base/time/time.h"
 #include "cc/animation/animation_events.h"
 #include "cc/output/begin_frame_args.h"
+#include "cc/scheduler/scheduler.h"
 #include "cc/trees/layer_tree_host_impl.h"
 #include "cc/trees/proxy.h"
+#include "cc/trees/proxy_timing_history.h"
 
 namespace cc {
 
@@ -19,7 +21,9 @@ class ContextProvider;
 class LayerTreeHost;
 class LayerTreeHostSingleThreadClient;
 
-class SingleThreadProxy : public Proxy, LayerTreeHostImplClient {
+class SingleThreadProxy : public Proxy,
+                          LayerTreeHostImplClient,
+                          SchedulerClient {
  public:
   static scoped_ptr<Proxy> Create(
       LayerTreeHost* layer_tree_host,
@@ -52,14 +56,35 @@ class SingleThreadProxy : public Proxy, LayerTreeHostImplClient {
   virtual void ForceSerializeOnSwapBuffers() OVERRIDE;
   virtual scoped_ptr<base::Value> AsValue() const OVERRIDE;
   virtual bool CommitPendingForTesting() OVERRIDE;
+  virtual scoped_ptr<base::Value> SchedulerStateAsValueForTesting() OVERRIDE;
+
+  // SchedulerClient implementation
+  virtual void SetNeedsBeginImplFrame(bool enable) OVERRIDE;
+  virtual void ScheduledActionSendBeginMainFrame() OVERRIDE;
+  virtual DrawSwapReadbackResult ScheduledActionDrawAndSwapIfPossible()
+      OVERRIDE;
+  virtual DrawSwapReadbackResult ScheduledActionDrawAndSwapForced() OVERRIDE;
+  virtual DrawSwapReadbackResult ScheduledActionDrawAndReadback() OVERRIDE;
+  virtual void ScheduledActionCommit() OVERRIDE;
+  virtual void ScheduledActionUpdateVisibleTiles() OVERRIDE;
+  virtual void ScheduledActionActivatePendingTree() OVERRIDE;
+  virtual void ScheduledActionBeginOutputSurfaceCreation() OVERRIDE;
+  virtual void ScheduledActionAcquireLayerTexturesForMainThread() OVERRIDE;
+  virtual void ScheduledActionManageTiles() OVERRIDE;
+  virtual void DidAnticipatedDrawTimeChange(base::TimeTicks time) OVERRIDE;
+  virtual base::TimeDelta DrawDurationEstimate() OVERRIDE;
+  virtual base::TimeDelta BeginMainFrameToCommitDurationEstimate() OVERRIDE;
+  virtual base::TimeDelta CommitToActivateDurationEstimate() OVERRIDE;
+  virtual void PostBeginImplFrameDeadline(const base::Closure& closure,
+                                          base::TimeTicks deadline) OVERRIDE;
+  virtual void DidBeginImplFrameDeadline() OVERRIDE;
 
   // LayerTreeHostImplClient implementation
   virtual void UpdateRendererCapabilitiesOnImplThread() OVERRIDE;
   virtual void DidLoseOutputSurfaceOnImplThread() OVERRIDE;
   virtual void DidSwapBuffersOnImplThread() OVERRIDE;
   virtual void OnSwapBuffersCompleteOnImplThread() OVERRIDE;
-  virtual void BeginImplFrame(const BeginFrameArgs& args)
-      OVERRIDE {}
+  virtual void BeginImplFrame(const BeginFrameArgs& args) OVERRIDE;
   virtual void OnCanDrawStateChanged(bool can_draw) OVERRIDE;
   virtual void NotifyReadyToActivate() OVERRIDE;
   virtual void SetNeedsRedrawOnImplThread() OVERRIDE;
@@ -79,8 +104,8 @@ class SingleThreadProxy : public Proxy, LayerTreeHostImplClient {
   virtual void RenewTreePriority() OVERRIDE {}
   virtual void RequestScrollbarAnimationOnImplThread(base::TimeDelta delay)
       OVERRIDE {}
-  virtual void DidActivatePendingTree() OVERRIDE {}
-  virtual void DidManageTiles() OVERRIDE {}
+  virtual void DidActivatePendingTree() OVERRIDE;
+  virtual void DidManageTiles() OVERRIDE;
 
   // Called by the legacy path where RenderWidget does the scheduling.
   void CompositeImmediately(base::TimeTicks frame_begin_time);
@@ -90,20 +115,23 @@ class SingleThreadProxy : public Proxy, LayerTreeHostImplClient {
                     LayerTreeHostSingleThreadClient* client);
 
   void OnOutputSurfaceInitializeAttempted(bool success);
-  bool CommitAndComposite(base::TimeTicks frame_begin_time,
-                          const gfx::Rect& device_viewport_damage_rect,
-                          bool for_readback,
-                          LayerTreeHostImpl::FrameData* frame);
-  void DoCommit(scoped_ptr<ResourceUpdateQueue> queue);
-  bool DoComposite(scoped_refptr<ContextProvider> offscreen_context_provider,
-                   base::TimeTicks frame_begin_time,
-                   const gfx::Rect& device_viewport_damage_rect,
-                   bool for_readback,
-                   LayerTreeHostImpl::FrameData* frame);
-  void DidSwapFrame();
+  void DoCommit(base::TimeTicks frame_begin_time);
+  DrawSwapReadbackResult::DrawResult DoComposite(
+      scoped_refptr<ContextProvider> offscreen_context_provider,
+      base::TimeTicks frame_begin_time,
+      const gfx::Rect& device_viewport_damage_rect,
+      bool for_readback,
+      LayerTreeHostImpl::FrameData* frame);
+  DrawSwapReadbackResult CommitAndCompositeInternal(
+      base::TimeTicks frame_begin_time,
+      gfx::Rect device_viewport_damage_rect,
+      bool do_commit,
+      bool for_readback);
+  void DidCommitAndDrawFrame();
 
   bool ShouldComposite() const;
   void UpdateBackgroundAnimateTicking();
+  scoped_refptr<ContextProvider> OffscreenContextProvider();
 
   // Accessed on main thread only.
   LayerTreeHost* layer_tree_host_;
@@ -115,9 +143,17 @@ class SingleThreadProxy : public Proxy, LayerTreeHostImplClient {
   scoped_ptr<LayerTreeHostImpl> layer_tree_host_impl_;
   RendererCapabilities renderer_capabilities_for_main_thread_;
 
+  // Accessed from both threads.
+  scoped_ptr<Scheduler> scheduler_on_impl_thread_;
+  ProxyTimingHistory timing_history_;
+
   bool next_frame_is_newly_committed_frame_;
 
   bool inside_draw_;
+  bool defer_commits_;
+  bool finish_commit_deferred_;
+
+  base::WeakPtrFactory<SingleThreadProxy> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SingleThreadProxy);
 };