gpu: Use mojom API for getting video memory usage.

content/gpu/gpu_child_thread.h

 // 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.
 
 #ifndef CONTENT_GPU_GPU_CHILD_THREAD_H_
 #define CONTENT_GPU_GPU_CHILD_THREAD_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 94 matching lines @@
       cc::mojom::DisplayCompositorRequest request,
       cc::mojom::DisplayCompositorClientPtr client) override;
 
   // base::FieldTrialList::Observer:
   void OnFieldTrialGroupFinalized(const std::string& trial_name,
                                   const std::string& group_name) override;
 
   // Message handlers.
   void OnFinalize();
   void OnCollectGraphicsInfo();
-  void OnGetVideoMemoryUsageStats();
   void OnSetVideoMemoryWindowCount(uint32_t window_count);
 
   void OnClean();
   void OnCrash();
   void OnHang();
 #if defined(OS_ANDROID)
   void OnJavaCrash();
 #endif
   void OnGpuSwitched();
 
@@ skipping 43 matching lines @@
   AssociatedInterfaceRegistryImpl associated_interfaces_;
   std::unique_ptr<ui::GpuService> gpu_service_;
   mojo::AssociatedBinding<ui::mojom::GpuMain> gpu_main_binding_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_GPU_GPU_CHILD_THREAD_H_