Cleanup SurfaceVisibility code.

content/common/gpu/gpu_command_buffer_stub.cc

Index: content/common/gpu/gpu_command_buffer_stub.cc
diff --git a/content/common/gpu/gpu_command_buffer_stub.cc b/content/common/gpu/gpu_command_buffer_stub.cc
index 39a75d2165055f20ca43cbe75afacd72bb67fcb4..eead7fb3c425ccf2a87f371b41610060b104b285 100644
--- a/content/common/gpu/gpu_command_buffer_stub.cc
+++ b/content/common/gpu/gpu_command_buffer_stub.cc
@@ -305,8 +305,6 @@ bool GpuCommandBufferStub::OnMessageReceived(const IPC::Message& message) {
                                     OnCreateVideoDecoder)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(GpuCommandBufferMsg_CreateVideoEncoder,
                                     OnCreateVideoEncoder)
-    IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SetSurfaceVisible,
-                        OnSetSurfaceVisible)
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_RetireSyncPoint,
                         OnRetireSyncPoint)
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SignalSyncPoint,
@@ -913,11 +911,6 @@ void GpuCommandBufferStub::OnCreateVideoEncoder(
   // self-delete during destruction of this stub.
 }
 
-// TODO(sohanjg): cleanup this and the client side too.
-void GpuCommandBufferStub::OnSetSurfaceVisible(bool visible) {
-  TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnSetSurfaceVisible");
-}
-
 void GpuCommandBufferStub::InsertSyncPoint(uint32 sync_point, bool retire) {
   sync_points_.push_back(sync_point);
   if (retire) {