Give the main frame a RenderWidget.

content/test/test_web_contents.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 "content/test/test_web_contents.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "content/browser/browser_url_handler_impl.h"
@@ skipping 284 matching lines @@
     int error_code,
     const base::string16& error_description,
     bool was_ignored_by_handler) {
   FrameHostMsg_DidFailLoadWithError msg(
       0, url, error_code, error_description, was_ignored_by_handler);
   frame_tree_.root()->current_frame_host()->OnMessageReceived(msg);
 }
 
 void TestWebContents::CreateNewWindow(
     SiteInstance* source_site_instance,
-    int route_id,
-    int main_frame_route_id,
+    int32 route_id,
+    int32 main_frame_route_id,
+    int32 main_frame_widget_route_id,
     const ViewHostMsg_CreateWindow_Params& params,
-    SessionStorageNamespace* session_storage_namespace) {
-}
+    SessionStorageNamespace* session_storage_namespace) {}
 
 void TestWebContents::CreateNewWidget(int render_process_id,
                                       int route_id,
                                       blink::WebPopupType popup_type) {
 }
 
 void TestWebContents::CreateNewFullscreenWidget(int render_process_id,
                                                 int route_id) {
 }
 
@@ skipping 10 matching lines @@
 void TestWebContents::ShowCreatedFullscreenWidget(int route_id) {
 }
 
 void TestWebContents::SaveFrameWithHeaders(const GURL& url,
                                            const Referrer& referrer,
                                            const std::string& headers) {
   save_frame_headers_ = headers;
 }
 
 }  // namespace content