Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebContentDecryptionModuleResult.cpp

 // Copyright 2014 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 "config.h"
 #include "public/platform/WebContentDecryptionModuleResult.h"
 
 #include "platform/ContentDecryptionModuleResult.h"
 
 namespace blink {
 
 void WebContentDecryptionModuleResult::complete()
 {
     m_impl->complete();
     reset();
 }
 
 void WebContentDecryptionModuleResult::completeWithSession(SessionStatus status)
 {
     m_impl->completeWithSession(status);
     reset();
 }
 
 void WebContentDecryptionModuleResult::completeWithError(WebContentDecryptionModuleException exception, unsigned long systemCode, const WebString& errorMessage)
 {
     m_impl->completeWithError(exception, systemCode, errorMessage);
     reset();
 }
 
-WebContentDecryptionModuleResult::WebContentDecryptionModuleResult(blink::ContentDecryptionModuleResult* impl)
+WebContentDecryptionModuleResult::WebContentDecryptionModuleResult(ContentDecryptionModuleResult* impl)
     : m_impl(impl)
 {
     ASSERT(m_impl.get());
 }
 
 void WebContentDecryptionModuleResult::reset()
 {
     m_impl.reset();
 }
 
 void WebContentDecryptionModuleResult::assign(const WebContentDecryptionModuleResult& o)
 {
     m_impl = o.m_impl;
 }
 
 } // namespace blink