Update routing id of pending resource requests for reparented iframes.

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 bd2251a0a3673d5b8b4a06b60fce2400c2454f61..7f3c2d1a11e0245ebc37515dfc4e8b1198d37571 100644
--- a/content/common/resource_messages.h
+++ b/content/common/resource_messages.h
@@ -160,6 +160,12 @@ IPC_MESSAGE_ROUTED2(ResourceHostMsg_RequestResource,
 IPC_MESSAGE_ROUTED1(ResourceHostMsg_CancelRequest,
                     int /* request_id */)
 
+// Sets a new routing id for the resource request with the ID given as the
+// parameter. This happens when a pending request is transferred to another
+// page.
+IPC_MESSAGE_ROUTED1(ResourceHostMsg_TransferRequestToNewPage,

[jam, 2011/08/15 16:31:02]

I don't see a need for this to be a routed message (most of the existing
messages should probably be control as well, but that's for another time).
routed messages are used when there are multiple instances of an object on the
other side dispatching the same message type. the routing id is used to
determine which object a message goes to. in this case, there's only one RDH in
the browser process.

[Dmitry Titov, 2011/08/15 20:50:10]

Done.

+                    int /* request_id */)
+
 // Follows a redirect that occured for the resource request with the ID given
 // as the parameter.
 IPC_MESSAGE_ROUTED3(ResourceHostMsg_FollowRedirect,