Rename WebCore namespace to blink in Platform

Source/platform/fonts/mac/MemoryActivatedFont.mm

 /*
  * This file is part of the internal font implementation.
  *
  * Copyright (c) 2010 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 18 matching lines @@
 #import "config.h"
 #import "platform/fonts/mac/MemoryActivatedFont.h"
 
 #import <AppKit/NSFont.h>
 #import "platform/LinkHash.h"
 #import "platform/fonts/FontPlatformData.h"
 #import "public/platform/mac/WebSandboxSupport.h"
 #import "public/platform/Platform.h"
 #import "wtf/HashMap.h"
 
-namespace WebCore {
+namespace blink {
 
 namespace {
 
 typedef HashMap<uint32, MemoryActivatedFont*> FontContainerRefMemoryFontHash;
 typedef HashMap<WTF::String, MemoryActivatedFont*> FontNameMemoryFontHash;
 
 // Caching:
 //
 // Requesting a font from the browser process is expensive and so is
 // "activating" said font.  Caching of loaded fonts is complicated by the fact
@@ skipping 147 matching lines @@
             // Need to add an extra retain so output semantics of this function
             // are consistent.
             CFRetain(cgFont);
         } else {
             // If we still can't load the font, set |outNSFont| to null so that FontPlatformData won't be used.
             outNSFont = 0;
         }
     }
 }
 
-} // namespace WebCore
+} // namespace blink