Rename WebCore namespace to blink in Platform

Source/platform/exported/WebConvertableToTraceFormat.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/WebConvertableToTraceFormat.h"
 
 #include "platform/EventTracer.h"
 #include "public/platform/WebString.h"
 
 using blink::WebConvertableToTraceFormat;
 using blink::WebString;
 
 namespace blink {
 
-WebConvertableToTraceFormat::WebConvertableToTraceFormat(WebCore::TraceEvent::ConvertableToTraceFormat* convertable)
+WebConvertableToTraceFormat::WebConvertableToTraceFormat(blink::TraceEvent::ConvertableToTraceFormat* convertable)
     : m_private(convertable)
 {
 }
 
 WebString WebConvertableToTraceFormat::asTraceFormat() const
 {
     return m_private->asTraceFormat();
 }
 
 void WebConvertableToTraceFormat::assign(const WebConvertableToTraceFormat& r)
 {
     m_private = r.m_private;
 }
 
 void WebConvertableToTraceFormat::reset()
 {
     m_private.reset();
 }
 
 }