Pass WebKit priority changes and parsing messages up to the browser process.

content/browser/loader/resource_dispatcher_host_impl.h

Index: content/browser/loader/resource_dispatcher_host_impl.h
diff --git a/content/browser/loader/resource_dispatcher_host_impl.h b/content/browser/loader/resource_dispatcher_host_impl.h
index 467745aadb5c275cc8ad95fb8b896fb004355b04..5141c23a90709c2ae7de1510ac3636b93aa5d1f2 100644
--- a/content/browser/loader/resource_dispatcher_host_impl.h
+++ b/content/browser/loader/resource_dispatcher_host_impl.h
@@ -321,6 +321,8 @@ class CONTENT_EXPORT ResourceDispatcherHostImpl
   void OnFollowRedirect(int request_id,
                         bool has_new_first_party_for_cookies,
                         const GURL& new_first_party_for_cookies);
+  void OnDidChangePriority(int request_id,
+                           WebKit::WebURLRequest::Priority priority);
   void OnReleaseDownloadedFile(int request_id);
 
   // Creates ResourceRequestInfoImpl for a download or page save.