Rename WebCore namespace to blink in Platform

Source/platform/weborigin/SecurityOriginHash.h

Index: Source/platform/weborigin/SecurityOriginHash.h
diff --git a/Source/platform/weborigin/SecurityOriginHash.h b/Source/platform/weborigin/SecurityOriginHash.h
index 10584f4d7aa80683d8ae11e5bbfe9e764f7d262e..a41acdd38840a28b4ee2f609779fadf1cc6be0d7 100644
--- a/Source/platform/weborigin/SecurityOriginHash.h
+++ b/Source/platform/weborigin/SecurityOriginHash.h
@@ -33,7 +33,7 @@
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/RefPtr.h"
 
-namespace WebCore {
+namespace blink {
 
 struct SecurityOriginHash {
     static unsigned hash(SecurityOrigin* origin)
@@ -85,14 +85,14 @@ struct SecurityOriginHash {
     static const bool safeToCompareToEmptyOrDeleted = false;
 };
 
-} // namespace WebCore
+} // namespace blink
 
 namespace WTF {
 
 template<typename> struct DefaultHash;
 
-template<> struct DefaultHash<RefPtr<WebCore::SecurityOrigin> > {
-    typedef WebCore::SecurityOriginHash Hash;
+template<> struct DefaultHash<RefPtr<blink::SecurityOrigin> > {
+    typedef blink::SecurityOriginHash Hash;
 };
 
 } // namespace WTF