Revert of content: Cleanup GpuMemoryBuffers when child process is removed.

content/browser/gpu/browser_gpu_memory_buffer_manager.h

Index: content/browser/gpu/browser_gpu_memory_buffer_manager.h
diff --git a/content/browser/gpu/browser_gpu_memory_buffer_manager.h b/content/browser/gpu/browser_gpu_memory_buffer_manager.h
index 84ad9e5c0f47f08db0e9f9956b1b010da6e261d0..b5ea1482036d14956d99e7170ef74725fe6d9187 100644
--- a/content/browser/gpu/browser_gpu_memory_buffer_manager.h
+++ b/content/browser/gpu/browser_gpu_memory_buffer_manager.h
@@ -41,20 +41,15 @@
       int child_client_id,
       const AllocationCallback& callback);
   void ChildProcessDeletedGpuMemoryBuffer(
+      gfx::GpuMemoryBufferType type,
       gfx::GpuMemoryBufferId id,
       base::ProcessHandle child_process_handle,
       int child_client_id,
       uint32 sync_point);
-  void ProcessRemoved(base::ProcessHandle process_handle, int client_id);
+  void ProcessRemoved(base::ProcessHandle process_handle);
 
  private:
   struct AllocateGpuMemoryBufferRequest;
-
-  void GpuMemoryBufferAllocatedForChildProcess(
-      base::ProcessHandle child_process_handle,
-      int child_client_id,
-      const AllocationCallback& callback,
-      const gfx::GpuMemoryBufferHandle& handle);
 
   static void AllocateGpuMemoryBufferOnIO(
       AllocateGpuMemoryBufferRequest* request);
@@ -63,13 +58,6 @@
       scoped_ptr<GpuMemoryBufferImpl> buffer);
 
   int gpu_client_id_;
-
-  typedef base::hash_map<gfx::GpuMemoryBufferId, gfx::GpuMemoryBufferType>
-      BufferMap;
-  typedef base::hash_map<int, BufferMap> ClientMap;
-  ClientMap clients_;
-
-  DISALLOW_COPY_AND_ASSIGN(BrowserGpuMemoryBufferManager);
 };
 
 }  // namespace content