Rename WebCore namespace to blink in Platform

Source/platform/heap/HeapTerminatedArrayBuilder.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 HeapTerminatedArrayBuilder_h
 #define HeapTerminatedArrayBuilder_h
 
 #include "platform/heap/Heap.h"
 #include "platform/heap/HeapTerminatedArray.h"
 #include "wtf/TerminatedArrayBuilder.h"
 
-namespace WebCore {
+namespace blink {
 
 template<typename T>
 class HeapTerminatedArrayBuilder : public TerminatedArrayBuilder<T, HeapTerminatedArray> {
 public:
     explicit HeapTerminatedArrayBuilder(HeapTerminatedArray<T>* array) : TerminatedArrayBuilder<T, HeapTerminatedArray>(array) { }
 };
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // HeapTerminatedArrayBuilder_h