Move gpu memory calculations to Compositor.

content/common/gpu/gpu_command_buffer_stub.h

Index: content/common/gpu/gpu_command_buffer_stub.h
diff --git a/content/common/gpu/gpu_command_buffer_stub.h b/content/common/gpu/gpu_command_buffer_stub.h
index 3efa9857a4a3d967ebd889b0847b0191267816d2..7a5454c8e42d052cda34ffe78e4aababc9f4dd47 100644
--- a/content/common/gpu/gpu_command_buffer_stub.h
+++ b/content/common/gpu/gpu_command_buffer_stub.h
@@ -97,7 +97,6 @@ class GpuCommandBufferStub
   // GpuMemoryManagerClient implementation:
   gfx::Size GetSurfaceSize() const override;
   gpu::gles2::MemoryTracker* GetMemoryTracker() const override;
-  void SetMemoryAllocation(const gpu::MemoryAllocation& allocation) override;
   void SuggestHaveFrontBuffer(bool suggest_have_frontbuffer) override;
   bool GetTotalGpuMemory(uint64* bytes) override;
 
@@ -210,8 +209,6 @@ class GpuCommandBufferStub
   void OnSignalSyncPointAck(uint32 id);
   void OnSignalQuery(uint32 query, uint32 id);
 
-  void OnSetClientHasMemoryAllocationChangedCallback(bool has_callback);
-
   void OnCreateImage(int32 id,
                      gfx::GpuMemoryBufferHandle handle,
                      gfx::Size size,
@@ -270,12 +267,6 @@ class GpuCommandBufferStub
   scoped_ptr<gpu::GpuScheduler> scheduler_;
   scoped_refptr<gfx::GLSurface> surface_;
 
-  scoped_ptr<GpuMemoryManagerClientState> memory_manager_client_state_;
-  // The last memory allocation received from the GpuMemoryManager (used to
-  // elide redundant work).
-  bool last_memory_allocation_valid_;
-  gpu::MemoryAllocation last_memory_allocation_;
-
   GpuWatchdog* watchdog_;
 
   base::ObserverList<DestructionObserver> destruction_observers_;