Move gpu memory calculations to Compositor.

content/common/gpu/client/command_buffer_proxy_impl.h

Index: content/common/gpu/client/command_buffer_proxy_impl.h
diff --git a/content/common/gpu/client/command_buffer_proxy_impl.h b/content/common/gpu/client/command_buffer_proxy_impl.h
index 82e30e5632fca5ce933aff04333215f24cf90780..09d30ae12a170aac364fa14755fa75daed7bda27 100644
--- a/content/common/gpu/client/command_buffer_proxy_impl.h
+++ b/content/common/gpu/client/command_buffer_proxy_impl.h
@@ -127,8 +127,6 @@ class CommandBufferProxyImpl
 
   typedef base::Callback<void(const gpu::MemoryAllocation&)>
       MemoryAllocationChangedCallback;
-  void SetMemoryAllocationChangedCallback(
-      const MemoryAllocationChangedCallback& callback);
   void AddDeletionObserver(DeletionObserver* observer);
   void RemoveDeletionObserver(DeletionObserver* observer);
 
@@ -184,7 +182,6 @@ class CommandBufferProxyImpl
   void OnDestroyed(gpu::error::ContextLostReason reason,
                    gpu::error::Error error);
   void OnConsoleMessage(const GPUCommandBufferConsoleMessage& message);
-  void OnSetMemoryAllocation(const gpu::MemoryAllocation& allocation);
   void OnSignalSyncPointAck(uint32 id);
   void OnSwapBuffersCompleted(const std::vector<ui::LatencyInfo>& latency_info,
                               gfx::SwapResult result);
@@ -219,8 +216,6 @@ class CommandBufferProxyImpl
 
   base::Closure context_lost_callback_;
 
-  MemoryAllocationChangedCallback memory_allocation_changed_callback_;
-
   GpuConsoleMessageCallback console_message_callback_;
 
   // Tasks to be invoked in SignalSyncPoint responses.