Retry 3 to split WebGraphicsContext3DCommandBufferImpl::initialize() into two stages.

content/renderer/gpu/command_buffer_proxy.cc

 // Copyright (c) 2011 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/renderer/gpu/command_buffer_proxy.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/process_util.h"
 #include "base/shared_memory.h"
@@ skipping 76 matching lines @@
   task->Run();
 }
 
 void CommandBufferProxy::SetChannelErrorCallback(Callback0::Type* callback) {
   channel_error_callback_.reset(callback);
 }
 
 bool CommandBufferProxy::Initialize(int32 size) {
   DCHECK(!ring_buffer_.get());
 
-  RenderThread* render_thread = RenderThread::current();
-  if (!render_thread)
+  ChildThread* child_thread = ChildThread::current();
+  if (!child_thread)
     return false;
 
   base::SharedMemoryHandle handle;
-  if (!render_thread->Send(new ViewHostMsg_AllocateSharedMemoryBuffer(
+  if (!child_thread->Send(new ViewHostMsg_AllocateSharedMemoryBuffer(
       size,
       &handle))) {
     return false;
   }
 
   if (!base::SharedMemory::IsHandleValid(handle))
     return false;
 
 #if defined(OS_POSIX)
   handle.auto_close = false;
@@ skipping 96 matching lines @@
 
 void CommandBufferProxy::SetGetOffset(int32 get_offset) {
   // Not implemented in proxy.
   NOTREACHED();
 }
 
 int32 CommandBufferProxy::CreateTransferBuffer(size_t size, int32 id_request) {
   if (last_state_.error != gpu::error::kNoError)
     return -1;
 
-  RenderThread* render_thread = RenderThread::current();
-  if (!render_thread)
+  ChildThread* child_thread = ChildThread::current();
+  if (!child_thread)
     return -1;
 
   base::SharedMemoryHandle handle;
-  if (!render_thread->Send(new ViewHostMsg_AllocateSharedMemoryBuffer(
+  if (!child_thread->Send(new ViewHostMsg_AllocateSharedMemoryBuffer(
       size,
       &handle))) {
     return -1;
   }
 
   if (!base::SharedMemory::IsHandleValid(handle))
     return -1;
 
   // Handle is closed by the SharedMemory object below. This stops
   // base::FileDescriptor from closing it as well.
@@ skipping 207 matching lines @@
   delete msg;
   return false;
 }
 
 void CommandBufferProxy::OnUpdateState(const gpu::CommandBuffer::State& state) {
   // Handle wraparound. It works as long as we don't have more than 2B state
   // updates in flight across which reordering occurs.
   if (state.generation - last_state_.generation < 0x80000000U)
     last_state_ = state;
 }