Revert of content/common: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

content/common/gpu/gpu_channel_manager.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_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
 #define CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
 
 #include <deque>
 #include <string>
 #include <vector>
 
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/message_loop/message_loop_proxy.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/common/gpu/gpu_memory_manager.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_sender.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gl/gl_surface.h"
 
@@ skipping 31 matching lines @@
 class MessageRouter;
 
 // A GpuChannelManager is a thread responsible for issuing rendering commands
 // managing the lifetimes of GPU channels and forwarding IPC requests from the
 // browser process to them based on the corresponding renderer ID.
 class CONTENT_EXPORT GpuChannelManager : public IPC::Listener,
                           public IPC::Sender {
  public:
   GpuChannelManager(MessageRouter* router,
                     GpuWatchdog* watchdog,
-                    base::SingleThreadTaskRunner* io_task_runner,
+                    base::MessageLoopProxy* io_message_loop,
                     base::WaitableEvent* shutdown_event,
                     IPC::SyncChannel* channel);
   ~GpuChannelManager() override;
 
   // Remove the channel for a particular renderer.
   void RemoveChannel(int client_id);
 
   // Listener overrides.
   bool OnMessageReceived(const IPC::Message& msg) override;
 
@@ skipping 52 matching lines @@
   void OnRelinquishResources();
   void OnResourcesRelinquished();
 
   void OnUpdateValueState(int client_id,
                           unsigned int target,
                           const gpu::ValueState& state);
 
   void OnLoseAllContexts();
   void CheckRelinquishGpuResources();
 
-  scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
+  scoped_refptr<base::MessageLoopProxy> io_message_loop_;
   base::WaitableEvent* shutdown_event_;
 
   // Used to send and receive IPC messages from the browser process.
   MessageRouter* const router_;
 
   // These objects manage channels to individual renderer processes there is
   // one channel for each renderer process that has connected to this GPU
   // process.
   GpuChannelMap gpu_channels_;
   scoped_refptr<gfx::GLShareGroup> share_group_;
@@ skipping 13 matching lines @@
   // that any WeakPtrs to Controller are invalidated before its members
   // variable's destructors are executed, rendering them invalid.
   base::WeakPtrFactory<GpuChannelManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_