Making OutputSurface a begin frame source and vsync source.

cc/test/fake_output_surface_client.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_TEST_FAKE_OUTPUT_SURFACE_CLIENT_H_
 #define CC_TEST_FAKE_OUTPUT_SURFACE_CLIENT_H_
 
 #include "cc/output/managed_memory_policy.h"
 #include "cc/output/output_surface_client.h"
 
 namespace cc {
 
 class OutputSurface;
 
-class FakeOutputSurfaceClient : public OutputSurfaceClient {
+class FakeOutputSurfaceClient : public OutputSurfaceClient,
+                                public BeginFrameObserver {
  public:
-  FakeOutputSurfaceClient()
-      : output_surface_(NULL),
-        begin_frame_count_(0),
-        deferred_initialize_called_(false),
-        did_lose_output_surface_called_(false),
-        memory_policy_(0) {}
+  FakeOutputSurfaceClient();
+  explicit FakeOutputSurfaceClient(OutputSurface* output_surface);
 
-  explicit FakeOutputSurfaceClient(OutputSurface* output_surface)
-      : output_surface_(output_surface),
-        begin_frame_count_(0),
-        deferred_initialize_called_(false),
-        did_lose_output_surface_called_(false),
-        memory_policy_(0) {}
-
+  // OutputSurfaceClient
   virtual void DeferredInitialize() OVERRIDE;
   virtual void ReleaseGL() OVERRIDE;
-  virtual void CommitVSyncParameters(base::TimeTicks timebase,
-                                     base::TimeDelta interval) OVERRIDE {}
   virtual void SetNeedsRedrawRect(const gfx::Rect& damage_rect) OVERRIDE {}
-  virtual void BeginFrame(const BeginFrameArgs& args) OVERRIDE;
   virtual void DidSwapBuffers() OVERRIDE {}
   virtual void DidSwapBuffersComplete() OVERRIDE {}
   virtual void ReclaimResources(const CompositorFrameAck* ack) OVERRIDE {}
   virtual void DidLoseOutputSurface() OVERRIDE;
   virtual void SetExternalDrawConstraints(
       const gfx::Transform& transform,
       const gfx::Rect& viewport,
       const gfx::Rect& clip,
       const gfx::Rect& viewport_rect_for_tile_priority,
       const gfx::Transform& transform_for_tile_priority,
       bool resourceless_software_draw) OVERRIDE {}
   virtual void SetMemoryPolicy(const ManagedMemoryPolicy& policy) OVERRIDE;
   virtual void SetTreeActivationCallback(const base::Closure&) OVERRIDE {}
 
+  // BeginFrameObserver
+  virtual void OnBeginFrame(const BeginFrameArgs& args) OVERRIDE;
+  virtual const BeginFrameArgs& LastBeginFrameArgs() const OVERRIDE;
+
+  // Tracing support
+  virtual void AsValueInto(base::debug::TracedValue* dict) const OVERRIDE;
+
   int begin_frame_count() { return begin_frame_count_; }
 
   bool deferred_initialize_called() {
     return deferred_initialize_called_;
   }
 
   bool did_lose_output_surface_called() {
     return did_lose_output_surface_called_;
   }
 
   const ManagedMemoryPolicy& memory_policy() const { return memory_policy_; }
 
  private:
   OutputSurface* output_surface_;
   int begin_frame_count_;
+  BeginFrameArgs last_begin_frame_args_;
   bool deferred_initialize_called_;
   bool did_lose_output_surface_called_;
   ManagedMemoryPolicy memory_policy_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_OUTPUT_SURFACE_CLIENT_H_