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

content/browser/gpu/gpu_process_host_ui_shim.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_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_
 #define CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_
 
 // This class lives on the UI thread and supports classes like the
 // BackingStoreProxy, which must live on the UI thread. The IO thread
 // portion of this class, the GpuProcessHost, is responsible for
@@ skipping 53 matching lines @@
 
   // Destroy all remaining GpuProcessHostUIShims.
   CONTENT_EXPORT static void DestroyAll();
 
   CONTENT_EXPORT static GpuProcessHostUIShim* FromID(int host_id);
 
   // Get a GpuProcessHostUIShim instance; it doesn't matter which one.
   // Return NULL if none has been created.
   CONTENT_EXPORT static GpuProcessHostUIShim* GetOneInstance();
 
+#if defined(OS_ANDROID)
+  void DestroyingVideoSurface(int surface_id, const base::Closure& done_cb);
+#endif
+
   // Stops the GPU process.
   void StopGpuProcess(const base::Closure& callback);
 
   // IPC::Sender implementation.
   bool Send(IPC::Message* msg) override;
 
   // IPC::Listener implementation.
   // The GpuProcessHost causes this to be called on the UI thread to
   // dispatch the incoming messages from the GPU process, which are
   // actually received on the IO thread.
@@ skipping 25 matching lines @@
   void OnRemoveSubscription(int32_t process_id, unsigned int target);
 
   // The serial number of the GpuProcessHost / GpuProcessHostUIShim pair.
   int host_id_;
   base::Closure close_callback_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_