Update WebFrameTestProxy and WebTestProxy to mostly follow Chrome style.

content/shell/renderer/test_runner/SpellCheckClient.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_SPELLCHECKCLIENT_H_
 #define CONTENT_SHELL_RENDERER_TEST_RUNNER_SPELLCHECKCLIENT_H_
 
 #include "base/basictypes.h"
 #include "content/shell/renderer/test_runner/MockSpellCheck.h"
 #include "content/shell/renderer/test_runner/WebTask.h"
 #include "third_party/WebKit/public/web/WebSpellCheckClient.h"
 
 namespace content {
 
 class WebTestDelegate;
 class WebTestProxyBase;
 
 class SpellCheckClient : public blink::WebSpellCheckClient {
 public:
     explicit SpellCheckClient(WebTestProxyBase*);
     virtual ~SpellCheckClient();
 
     void setDelegate(WebTestDelegate*);
 
-    WebTaskList* taskList() { return &m_taskList; }
+    WebTaskList* mutable_task_list() { return &m_taskList; }
     MockSpellCheck* mockSpellCheck() { return &m_spellcheck; }
 
     // blink::WebSpellCheckClient implementation.
     virtual void spellCheck(const blink::WebString&, int& offset, int& length, blink::WebVector<blink::WebString>* optionalSuggestions);
     virtual void checkTextOfParagraph(const blink::WebString&, blink::WebTextCheckingTypeMask, blink::WebVector<blink::WebTextCheckingResult>*);
     virtual void requestCheckingOfText(const blink::WebString&,
                                        const blink::WebVector<uint32_t>&,
                                        const blink::WebVector<unsigned>&,
                                        blink::WebTextCheckingCompletion*);
     virtual blink::WebString autoCorrectWord(const blink::WebString&);
@@ skipping 12 matching lines @@
     WebTestDelegate* m_delegate;
 
     WebTestProxyBase* m_webTestProxy;
 
     DISALLOW_COPY_AND_ASSIGN(SpellCheckClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_SPELLCHECKCLIENT_H_