[chrome/renderer/media] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

chrome/renderer/media/webrtc_logging_message_filter.h

 // Copyright 2013 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 CHROME_RENDERER_MEDIA_WEBRTC_LOGGING_MESSAGE_FILTER_H_
 #define CHROME_RENDERER_MEDIA_WEBRTC_LOGGING_MESSAGE_FILTER_H_
 
+#include "base/single_thread_task_runner.h"
 #include "chrome/common/media/webrtc_logging_message_data.h"
 #include "ipc/message_filter.h"
 
-namespace base {
-class MessageLoopProxy;
-}
-
 class ChromeWebRtcLogMessageDelegate;
 
 // Filter for WebRTC logging messages. Sits between
 // ChromeWebRtcLogMessageDelegate (renderer process) and
 // WebRtcLoggingHandlerHost (browser process). Must be called on the IO thread.
 class WebRtcLoggingMessageFilter : public IPC::MessageFilter {
  public:
   explicit WebRtcLoggingMessageFilter(
-      const scoped_refptr<base::MessageLoopProxy>& io_message_loop);
+      const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner);
 
   virtual void AddLogMessages(
       const std::vector<WebRtcLoggingMessageData>& messages);
   virtual void LoggingStopped();
 
-  const scoped_refptr<base::MessageLoopProxy>& io_message_loop() {
-    return io_message_loop_;
+  const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner() {
+    return io_task_runner_;
   }
 
  protected:
   ~WebRtcLoggingMessageFilter() override;
 
-  scoped_refptr<base::MessageLoopProxy> io_message_loop_;
+  scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
 
   // Owned by this class. The only other pointer to it is in libjingle's logging
   // file. That's a global pointer used on different threads, so we will leak
   // this object when we go away to ensure that it outlives any log messages
   // coming from libjingle.
   // This is protected for unit test purposes.
   // TODO(vrk): Remove ChromeWebRtcLogMessageDelegate's pointer to
   // WebRtcLoggingMessageFilter so that we can write a unit test that doesn't
   // need this accessor.
   ChromeWebRtcLogMessageDelegate* log_message_delegate_;
@@ skipping 10 matching lines @@
   void OnStartLogging();
   void OnStopLogging();
   void Send(IPC::Message* message);
 
   IPC::Sender* sender_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRtcLoggingMessageFilter);
 };
 
 #endif  // CHROME_RENDERER_MEDIA_WEBRTC_LOGGING_MESSAGE_FILTER_H_