[abort] Let webkit know we're past the phase where throttles run.

content/common/resource_messages.h

Index: content/common/resource_messages.h
diff --git a/content/common/resource_messages.h b/content/common/resource_messages.h
index 0ee74eb5e0956266bc9042ba1c162b97e66e7a8e..e51fea7b0edc9f1733b8474dc05f8d408c27b074 100644
--- a/content/common/resource_messages.h
+++ b/content/common/resource_messages.h
@@ -289,6 +289,11 @@ IPC_MESSAGE_ROUTED2(ResourceHostMsg_RequestResource,
 IPC_MESSAGE_CONTROL1(ResourceHostMsg_CancelRequest,
                      int /* request_id */)
 
+// Sent when the browser had decided that a particular request will be started
+// (effectively this means we know it won't be immediately cancelled).
+IPC_MESSAGE_CONTROL1(ResourceMsg_RequestDidStartForFrame,
+                     int /* request_id */)
+
 // Follows a redirect that occured for the resource request with the ID given
 // as the parameter.
 IPC_MESSAGE_CONTROL3(ResourceHostMsg_FollowRedirect,