Convert a bunch of resource IPCs to be control messages. They didn't need to be routed.

content/browser/loader/resource_scheduler_unittest.cc

Index: content/browser/loader/resource_scheduler_unittest.cc
===================================================================
--- content/browser/loader/resource_scheduler_unittest.cc	(revision 221543)
+++ content/browser/loader/resource_scheduler_unittest.cc	(working copy)
@@ -193,8 +193,7 @@
     const ResourceRequestInfoImpl* info = ResourceRequestInfoImpl::ForRequest(
         request->url_request());
     const GlobalRequestID& id = info->GetGlobalRequestID();
-    ResourceHostMsg_DidChangePriority msg(
-        kRouteId, id.request_id, new_priority);
+    ResourceHostMsg_DidChangePriority msg(id.request_id, new_priority);
     bool ok = false;
     rdh_.OnMessageReceived(msg, filter.get(), &ok);
     EXPECT_TRUE(ok);