Rename WebCore namespace to blink in Platform

Source/platform/PlatformInstrumentation.h

 /*
  * Copyright (C) 2012 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 18 matching lines @@
  */
 
 #ifndef PlatformInstrumentation_h
 #define PlatformInstrumentation_h
 
 #include "platform/PlatformExport.h"
 #include "platform/TraceEvent.h"
 #include "wtf/MainThread.h"
 #include "wtf/text/WTFString.h"
 
-namespace WebCore {
+namespace blink {
 
 class PLATFORM_EXPORT PlatformInstrumentationClient {
 public:
     virtual ~PlatformInstrumentationClient();
 
     virtual void willDecodeImage(const String& imageType) = 0;
     virtual void didDecodeImage() = 0;
     virtual void willResizeImage(bool shouldCache) = 0;
     virtual void didResizeImage() = 0;
 };
@@ skipping 73 matching lines @@
 inline void PlatformInstrumentation::willDecodeLazyPixelRef(unsigned long long lazyPixelRefId)
 {
     TRACE_EVENT_BEGIN1(CategoryName, DecodeLazyPixelRefEvent, LazyPixelRef, lazyPixelRefId);
 }
 
 inline void PlatformInstrumentation::didDecodeLazyPixelRef()
 {
     TRACE_EVENT_END0(CategoryName, DecodeLazyPixelRefEvent);
 }
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // PlatformInstrumentation_h