Rename WebKit namespace to blink

public/platform/WebFloatSize.h

 /*
  * Copyright (C) 2013 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 25 matching lines @@
 #include <algorithm>
 
 #if BLINK_IMPLEMENTATION
 #include "platform/geometry/FloatSize.h"
 #else
 #include <cmath>
 #include <ui/gfx/size_f.h>
 #include <ui/gfx/vector2d_f.h>
 #endif
 
-namespace WebKit {
+namespace blink {
 
 struct WebFloatSize {
     float width;
     float height;
 
     bool isEmpty() const { return width <= 0 || height <= 0; }
 
     WebFloatSize()
         : width(0)
         , height(0)
@@ skipping 66 matching lines @@
 inline bool operator==(const WebFloatSize& a, const WebFloatSize& b)
 {
     return a.width == b.width && a.height == b.height;
 }
 
 inline bool operator!=(const WebFloatSize& a, const WebFloatSize& b)
 {
     return !(a == b);
 }
 
-} // namespace WebKit
+} // namespace blink
 
 #endif