Revert of Move gpu memory calculations to Compositor.

content/common/gpu/client/command_buffer_proxy_impl.cc

Index: content/common/gpu/client/command_buffer_proxy_impl.cc
diff --git a/content/common/gpu/client/command_buffer_proxy_impl.cc b/content/common/gpu/client/command_buffer_proxy_impl.cc
index 4ae3741fcd762886d572b06e2bd2f56ed776f027..c7af757e2742159049aff97a8044facd189623a5 100644
--- a/content/common/gpu/client/command_buffer_proxy_impl.cc
+++ b/content/common/gpu/client/command_buffer_proxy_impl.cc
@@ -72,6 +72,8 @@ bool CommandBufferProxyImpl::OnMessageReceived(const IPC::Message& message) {
   IPC_BEGIN_MESSAGE_MAP(CommandBufferProxyImpl, message)
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_Destroyed, OnDestroyed);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_ConsoleMsg, OnConsoleMessage);
+    IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SetMemoryAllocation,
+                        OnSetMemoryAllocation);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SignalAck,
                         OnSignalAck);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SwapBuffersCompleted,
@@ -130,6 +132,17 @@ void CommandBufferProxyImpl::OnConsoleMessage(
   }
 }
 
+void CommandBufferProxyImpl::SetMemoryAllocationChangedCallback(
+    const MemoryAllocationChangedCallback& callback) {
+  CheckLock();
+  if (last_state_.error != gpu::error::kNoError)
+    return;
+
+  memory_allocation_changed_callback_ = callback;
+  Send(new GpuCommandBufferMsg_SetClientHasMemoryAllocationChangedCallback(
+      route_id_, !memory_allocation_changed_callback_.is_null()));
+}
+
 void CommandBufferProxyImpl::AddDeletionObserver(DeletionObserver* observer) {
   scoped_ptr<base::AutoLock> lock;
   if (lock_)
@@ -145,6 +158,12 @@ void CommandBufferProxyImpl::RemoveDeletionObserver(
   deletion_observers_.RemoveObserver(observer);
 }
 
+void CommandBufferProxyImpl::OnSetMemoryAllocation(
+    const gpu::MemoryAllocation& allocation) {
+  if (!memory_allocation_changed_callback_.is_null())
+    memory_allocation_changed_callback_.Run(allocation);
+}
+
 void CommandBufferProxyImpl::OnSignalAck(uint32 id) {
   SignalTaskMap::iterator it = signal_tasks_.find(id);
   DCHECK(it != signal_tasks_.end());