Update WebFrameTestProxy and WebTestProxy to mostly follow Chrome style.

content/shell/renderer/test_runner/MockWebRTCPeerConnectionHandler.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 CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCKWEBRTCPEERCONNECTIONHANDLER_H_
 #define CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCKWEBRTCPEERCONNECTIONHANDLER_H_
 
 #include "base/basictypes.h"
 #include "content/shell/renderer/test_runner/TestCommon.h"
 #include "content/shell/renderer/test_runner/WebTask.h"
@@ skipping 26 matching lines @@
     virtual bool addICECandidate(const blink::WebRTCICECandidate&) OVERRIDE;
     virtual bool addICECandidate(const blink::WebRTCVoidRequest&, const blink::WebRTCICECandidate&) OVERRIDE;
     virtual bool addStream(const blink::WebMediaStream&, const blink::WebMediaConstraints&) OVERRIDE;
     virtual void removeStream(const blink::WebMediaStream&) OVERRIDE;
     virtual void getStats(const blink::WebRTCStatsRequest&) OVERRIDE;
     virtual blink::WebRTCDataChannelHandler* createDataChannel(const blink::WebString& label, const blink::WebRTCDataChannelInit&) OVERRIDE;
     virtual blink::WebRTCDTMFSenderHandler* createDTMFSender(const blink::WebMediaStreamTrack&) OVERRIDE;
     virtual void stop() OVERRIDE;
 
     // WebTask related methods
-    WebTaskList* taskList() { return &m_taskList; }
+    WebTaskList* mutable_task_list() { return &m_taskList; }
 
 private:
     MockWebRTCPeerConnectionHandler();
 
     blink::WebRTCPeerConnectionHandlerClient* m_client;
     bool m_stopped;
     WebTaskList m_taskList;
     blink::WebRTCSessionDescription m_localDescription;
     blink::WebRTCSessionDescription m_remoteDescription;
     int m_streamCount;
     TestInterfaces* m_interfaces;
 
     DISALLOW_COPY_AND_ASSIGN(MockWebRTCPeerConnectionHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCKWEBRTCPEERCONNECTIONHANDLER_H_