Rename WebKit namespace to blink

public/web/WebImageCache.h

Index: public/web/WebImageCache.h
diff --git a/public/web/WebImageCache.h b/public/web/WebImageCache.h
index d2521b2b55268effd0e39a1c3c5c6eccf95d21ed..8dcdd4ea10f2b3c4fa2a8e1fd2b33f468968b877 100644
--- a/public/web/WebImageCache.h
+++ b/public/web/WebImageCache.h
@@ -33,14 +33,14 @@
 
 #include "../platform/WebCommon.h"
 
-namespace WebKit {
+namespace blink {
 
 // An interface to query and configure WebKit's image cache.
 //
 // Methods of this interface can be called on any thread.
 //
-// Methods of this interface can be only be used after WebKit::initialize()
-// and before WebKit::shutdown() is called.
+// Methods of this interface can be only be used after blink::initialize()
+// and before blink::shutdown() is called.
 
 class WebImageCache {
 public:
@@ -61,6 +61,6 @@ private:
     WebImageCache();  // Not intended to be instanced.
 };
 
-}  // namespace WebKit
+}  // namespace blink
 
 #endif