Rename WebCore namespace to blink in Platform

Source/platform/Cookie.h

Index: Source/platform/Cookie.h
diff --git a/Source/platform/Cookie.h b/Source/platform/Cookie.h
index 0c786d170ee76a39300a8e7b5ebf4d0bc13c6be0..c15cbddb364c0eee00c346212d8743001b6f3936 100644
--- a/Source/platform/Cookie.h
+++ b/Source/platform/Cookie.h
@@ -29,7 +29,7 @@
 #include "wtf/text/StringHash.h"
 #include "wtf/text/WTFString.h"
 
-namespace WebCore {
+namespace blink {
 
 // This struct is currently only used to provide more cookies information
 // to the Web Inspector.
@@ -76,8 +76,8 @@ struct CookieHash {
 
 namespace WTF {
 template<typename T> struct DefaultHash;
-template<> struct DefaultHash<WebCore::Cookie> {
-    typedef WebCore::CookieHash Hash;
+template<> struct DefaultHash<blink::Cookie> {
+    typedef blink::CookieHash Hash;
 };
 }