Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebSpeechSynthesisUtterance.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 13 matching lines @@
  */
 
 #include "config.h"
 
 #include "public/platform/WebSpeechSynthesisUtterance.h"
 
 #include "platform/speech/PlatformSpeechSynthesisUtterance.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
-using namespace blink;
-
 namespace blink {
 
-WebSpeechSynthesisUtterance::WebSpeechSynthesisUtterance(blink::PlatformSpeechSynthesisUtterance* utterance)
+WebSpeechSynthesisUtterance::WebSpeechSynthesisUtterance(PlatformSpeechSynthesisUtterance* utterance)
     : m_private(utterance)
 {
 }
 
-WebSpeechSynthesisUtterance& WebSpeechSynthesisUtterance::operator=(blink::PlatformSpeechSynthesisUtterance* utterance)
+WebSpeechSynthesisUtterance& WebSpeechSynthesisUtterance::operator=(PlatformSpeechSynthesisUtterance* utterance)
 {
     m_private = utterance;
     return *this;
 }
 
 void WebSpeechSynthesisUtterance::assign(const WebSpeechSynthesisUtterance& other)
 {
     m_private = other.m_private;
 }
 
@@ skipping 36 matching lines @@
 {
     return m_private->pitch();
 }
 
 double WebSpeechSynthesisUtterance::startTime() const
 {
     return m_private->startTime();
 }
 
 } // namespace blink