Update WebFrameTestProxy and WebTestProxy to mostly follow Chrome style.

content/shell/renderer/test_runner/MockWebSpeechRecognizer.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_MOCKWEBSPEECHRECOGNIZER_H_
 #define CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCKWEBSPEECHRECOGNIZER_H_
 
 #include <deque>
 #include <vector>
 
@@ skipping 25 matching lines @@
     virtual void abort(const blink::WebSpeechRecognitionHandle&, blink::WebSpeechRecognizerClient*) OVERRIDE;
 
     // Methods accessed by layout tests:
     void addMockResult(const blink::WebString& transcript, float confidence);
     void setError(const blink::WebString& error, const blink::WebString& message);
     bool wasAborted() const { return m_wasAborted; }
 
     // Methods accessed from Task objects:
     blink::WebSpeechRecognizerClient* client() { return m_client; }
     blink::WebSpeechRecognitionHandle& handle() { return m_handle; }
-    WebTaskList* taskList() { return &m_taskList; }
+    WebTaskList* mutable_task_list() { return &m_taskList; }
 
     class Task {
     public:
         Task(MockWebSpeechRecognizer* recognizer) : m_recognizer(recognizer) { }
         virtual ~Task() { }
         virtual void run() = 0;
     protected:
         MockWebSpeechRecognizer* m_recognizer;
     };
 
@@ skipping 20 matching lines @@
         StepTask(MockWebSpeechRecognizer* object) : WebMethodTask<MockWebSpeechRecognizer>(object) { }
         virtual void runIfValid() OVERRIDE;
     };
 
     DISALLOW_COPY_AND_ASSIGN(MockWebSpeechRecognizer);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_MOCKWEBSPEECHRECOGNIZER_H_