Mac Chromium style checker cleanup

chrome/browser/speech/tts_mac.mm

 // 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.
 
 #include <string>
 
 #include "base/memory/scoped_nsobject.h"
 #include "base/memory/singleton.h"
 #include "base/sys_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/browser/speech/tts_controller.h"
 #include "chrome/browser/speech/tts_platform.h"
 
 #import <Cocoa/Cocoa.h>
 
 class TtsPlatformImplMac;
 
 @interface ChromeTtsDelegate : NSObject <NSSpeechSynthesizerDelegate> {
  @private
   TtsPlatformImplMac* ttsImplMac_;  // weak.
 }
 
 - (id)initWithPlatformImplMac:(TtsPlatformImplMac*)ttsImplMac;
 
 @end
 
 class TtsPlatformImplMac : public TtsPlatformImpl {
  public:
-  virtual bool PlatformImplAvailable() {
+  virtual bool PlatformImplAvailable() OVERRIDE {
     return true;
   }
 
   virtual bool Speak(
       int utterance_id,
       const std::string& utterance,
       const std::string& lang,
-      const UtteranceContinuousParameters& params);
+      const UtteranceContinuousParameters& params) OVERRIDE;
 
-  virtual bool StopSpeaking();
+  virtual bool StopSpeaking() OVERRIDE;
 
-  virtual bool IsSpeaking();
+  virtual bool IsSpeaking() OVERRIDE;
 
-  virtual bool SendsEvent(TtsEventType event_type);
+  virtual bool SendsEvent(TtsEventType event_type) OVERRIDE;
 
   // Called by ChromeTtsDelegate when we get a callback from the
   // native speech engine.
   void OnSpeechEvent(NSSpeechSynthesizer* sender,
                      TtsEventType event_type,
                      int char_index,
                      const std::string& error_message);
 
   // Get the single instance of this class.
   static TtsPlatformImplMac* GetInstance();
@@ skipping 144 matching lines @@
 - (void)speechSynthesizer:(NSSpeechSynthesizer*)sender
  didEncounterErrorAtIndex:(NSUInteger)character_index
                  ofString:(NSString*)string
                   message:(NSString*)message {
   std::string message_utf8 = base::SysNSStringToUTF8(message);
   ttsImplMac_->OnSpeechEvent(sender, TTS_EVENT_ERROR, character_index,
       message_utf8);
 }
 
 @end