content: Add DeletedGpuMemoryBuffer IPC.

content/common/gpu/client/command_buffer_proxy_impl.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 "content/common/gpu/client/command_buffer_proxy_impl.h"
 
 #include "base/callback.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/memory/shared_memory.h"
@@ skipping 324 matching lines @@
 
   *id = new_id;
   DCHECK(gpu_memory_buffers_.find(new_id) == gpu_memory_buffers_.end());
   return gpu_memory_buffers_.add(new_id, buffer.Pass()).first->second;
 }
 
 void CommandBufferProxyImpl::DestroyGpuMemoryBuffer(int32 id) {
   if (last_state_.error != gpu::error::kNoError)
     return;
 
-  Send(new GpuCommandBufferMsg_DestroyGpuMemoryBuffer(route_id_, id));
+  Send(new GpuCommandBufferMsg_UnregisterGpuMemoryBuffer(route_id_, id));
 
   // Remove the gpu memory buffer from the client side cache.
-  gpu_memory_buffers_.erase(id);
+  DCHECK(gpu_memory_buffers_.find(id) != gpu_memory_buffers_.end());
+  channel_->factory()->DeleteGpuMemoryBuffer(gpu_memory_buffers_.take(id));
 }
 
 int CommandBufferProxyImpl::GetRouteID() const {
   return route_id_;
 }
 
 void CommandBufferProxyImpl::Echo(const base::Closure& callback) {
   if (last_state_.error != gpu::error::kNoError) {
     return;
   }
@@ skipping 158 matching lines @@
   if (last_state_.error == gpu::error::kNoError)
     shared_state()->Read(&last_state_);
 }
 
 gpu::CommandBufferSharedState* CommandBufferProxyImpl::shared_state() const {
   return reinterpret_cast<gpu::CommandBufferSharedState*>(
       shared_state_shm_->memory());
 }
 
 }  // namespace content