Make RenderFrame{Host} objects routable.

content/browser/renderer_host/render_view_host_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/browser/web_contents/navigation_controller_impl.h"
 #include "content/common/input_messages.h"
@@ skipping 270 matching lines @@
   EXPECT_EQ(0, process()->bad_msg_count());
   test_rvh()->SendNavigateWithFile(1, url, file_path);
   EXPECT_EQ(1, process()->bad_msg_count());
 
   ChildProcessSecurityPolicyImpl::GetInstance()->GrantReadFile(
       process()->GetID(), file_path);
   test_rvh()->SendNavigateWithFile(process()->GetID(), url, file_path);
   EXPECT_EQ(1, process()->bad_msg_count());
 }
 
+TEST_F(RenderViewHostTest, RoutingIdSane) {
+  EXPECT_EQ(test_rvh()->GetProcess(),
+            test_rvh()->main_render_frame_host()->GetProcess());
+  EXPECT_NE(test_rvh()->GetRoutingID(),
+            test_rvh()->main_render_frame_host()->routing_id());
+}
+
 }  // namespace content