Another stab at the Chromium side of storage events. The WebKit side can be ...

webkit/api/public/WebKitClient.h

Index: webkit/api/public/WebKitClient.h
===================================================================
--- webkit/api/public/WebKitClient.h	(revision 27652)
+++ webkit/api/public/WebKitClient.h	(working copy)
@@ -85,13 +85,17 @@
 
         // Return a LocalStorage namespace that corresponds to the following
         // path.
-        virtual WebStorageNamespace* createLocalStorageNamespace(
-            const WebString& path) = 0;
+        virtual WebStorageNamespace* createLocalStorageNamespace(const WebString& path) = 0;
 
         // Return a new SessionStorage namespace.
         virtual WebStorageNamespace* createSessionStorageNamespace() = 0;
 
+        // Called when storage events fire.
+        virtual void dispatchStorageEvent(const WebString& key, const WebString& oldValue,
+                                          const WebString& newValue, const WebString& origin,
+                                          bool isLocalStorage) = 0;
 
+
         // File ----------------------------------------------------------------
 
         // Various file/directory related functions.  These map 1:1 with