Rename WebCore namespace to blink in Platform

Source/platform/TracedValue.h

 // 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.
 
 #ifndef TracedValue_h
 #define TracedValue_h
 
 #include "platform/EventTracer.h"
 
 #include "wtf/PassRefPtr.h"
 #include "wtf/text/WTFString.h"
 
-namespace WebCore {
+namespace blink {
 class JSONArray;
 class JSONObject;
 class JSONValue;
 class TracedArrayBase;
 template<class T> class TracedArray;
 template<class T> class TracedDictionary;
 
 class PLATFORM_EXPORT TracedValueBase {
     WTF_MAKE_NONCOPYABLE(TracedValueBase);
 protected:
@@ skipping 229 matching lines @@
     }
     SelfType& setString(const char* name, const String& value)
     {
         TracedValueBase::setString(name, value);
         return *this;
     }
 
     PassRefPtr<TraceEvent::ConvertableToTraceFormat> finish();
 };
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // TracedValue_h