Revert of Make lost context and error message callbacks on GpuControl go to client

gpu/command_buffer/tests/gl_manager.cc

 // Copyright (c) 2012 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.
 
 #include "gpu/command_buffer/tests/gl_manager.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
 #include <stddef.h>
@@ skipping 493 matching lines @@
   if (sync_point_manager_) {
     // Finish processing order number here.
     sync_point_order_data_->FinishProcessingOrderNumber(order_num);
   }
 }
 
 bool GLManager::GetBufferChanged(int32_t transfer_buffer_id) {
   return executor_->SetGetBuffer(transfer_buffer_id);
 }
 
-void GLManager::SetGpuControlClient(GpuControlClient*) {
-  // The client is not currently called, so don't store it.
-}
-
 Capabilities GLManager::GetCapabilities() {
   return decoder_->GetCapabilities();
 }
 
 int32_t GLManager::CreateImage(ClientBuffer buffer,
                                size_t width,
                                size_t height,
                                unsigned internalformat) {
   gfx::Size size(width, height);
   scoped_refptr<gl::GLImage> gl_image;
@@ skipping 110 matching lines @@
 
   // Something went wrong, just run the callback now.
   callback.Run();
 }
 
 bool GLManager::CanWaitUnverifiedSyncToken(const gpu::SyncToken* sync_token) {
   return false;
 }
 
 }  // namespace gpu