Plumb a Browser->GPU surface destruction message for Android VDAs

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 <queue>
@@ skipping 125 matching lines @@
   void OnCloseChannel(int32_t client_id);
   void OnLoadedShader(const std::string& shader);
   void OnDestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
                                 int client_id,
                                 const gpu::SyncToken& sync_token);
   void OnUpdateValueState(int client_id,
                           unsigned int target,
                           const gpu::ValueState& state);
 #if defined(OS_ANDROID)
   void OnWakeUpGpu();
+  void OnDestroyingVideoSurface(int surface_id);
 #endif
   void OnLoseAllContexts();
 
   void BindProcessControlRequest(
       mojo::InterfaceRequest<mojom::ProcessControl> request);
 
   gpu::GpuPreferences gpu_preferences_;
 
   // Set this flag to true if a fatal error occurred before we receive the
   // OnInitialize message, in which case we just declare ourselves DOA.
@@ skipping 30 matching lines @@
 
   // Bindings to the mojom::ProcessControl impl.
   mojo::BindingSet<mojom::ProcessControl> process_control_bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_GPU_GPU_CHILD_THREAD_H_