Rename WebCore namespace to blink in Public

public/web/WebDatabase.h

Index: public/web/WebDatabase.h
diff --git a/public/web/WebDatabase.h b/public/web/WebDatabase.h
index 14973c28e88f7b9331dd8423620da46ec0ca79c2..3d1f894ba58d9946ca6de7e7f042daba47b7cc67 100644
--- a/public/web/WebDatabase.h
+++ b/public/web/WebDatabase.h
@@ -34,7 +34,7 @@
 #include "../platform/WebCommon.h"
 #include "WebSecurityOrigin.h"
 
-namespace WebCore { class DatabaseBackendBase; }
+namespace blink { class DatabaseBackendBase; }
 
 namespace blink {
 
@@ -59,12 +59,12 @@ public:
         const WebString& originIdentifier, const WebString& databaseName);
 
 #if BLINK_IMPLEMENTATION
-    WebDatabase(const WebCore::DatabaseBackendBase*);
+    WebDatabase(const blink::DatabaseBackendBase*);
 #endif
 
 private:
     WebDatabase() { }
-    const WebCore::DatabaseBackendBase* m_database;
+    const blink::DatabaseBackendBase* m_database;
 };
 
 } // namespace blink