Switch chrome and chromiumDRT over to using the new WebKit API for dispatching events.

content/browser/dom_storage/dom_storage_message_filter.cc

Index: content/browser/dom_storage/dom_storage_message_filter.cc
===================================================================
--- content/browser/dom_storage/dom_storage_message_filter.cc	(revision 133749)
+++ content/browser/dom_storage/dom_storage_message_filter.cc	(working copy)
@@ -238,6 +238,7 @@
     const NullableString16& new_value,
     const NullableString16& old_value) {
   DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK(area);
   DOMStorageMsg_Event_Params params;
   params.origin = area->origin();
   params.page_url = page_url;
@@ -245,5 +246,6 @@
   params.key = key;
   params.new_value = new_value;
   params.old_value = old_value;
+  params.namespace_id = area->namespace_id();
   Send(new DOMStorageMsg_Event(params));
 }