Revert of Make RenderFrame(Host) own a RenderWidget(Host).

content/test/test_render_frame_host.cc

 // Copyright 2013 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_render_frame_host.h"
 
 #include "base/command_line.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/navigation_request.h"
 #include "content/browser/frame_host/navigator.h"
@@ skipping 18 matching lines @@
 TestRenderFrameHostCreationObserver::~TestRenderFrameHostCreationObserver() {
 }
 
 void TestRenderFrameHostCreationObserver::RenderFrameCreated(
     RenderFrameHost* render_frame_host) {
   last_created_frame_ = render_frame_host;
 }
 
 TestRenderFrameHost::TestRenderFrameHost(RenderViewHostImpl* render_view_host,
                                          RenderFrameHostDelegate* delegate,
-                                         RenderWidgetHostDelegate* rwh_delegate,
                                          FrameTree* frame_tree,
                                          FrameTreeNode* frame_tree_node,
                                          int routing_id,
                                          int flags)
     : RenderFrameHostImpl(render_view_host,
                           delegate,
-                          rwh_delegate,
                           frame_tree,
                           frame_tree_node,
                           routing_id,
                           flags),
       child_creation_observer_(delegate ? delegate->GetAsWebContents() : NULL),
       contents_mime_type_("text/html"),
       simulate_history_list_was_cleared_(false) {
 }
 
 TestRenderFrameHost::~TestRenderFrameHost() {}
@@ skipping 176 matching lines @@
 
   ASSERT_TRUE(request->state() == NavigationRequest::STARTED);
   TestNavigationURLLoader* url_loader =
       static_cast<TestNavigationURLLoader*>(request->loader_for_testing());
   ASSERT_TRUE(url_loader);
   scoped_refptr<ResourceResponse> response(new ResourceResponse);
   url_loader->CallOnResponseStarted(response, MakeEmptyStream());
 }
 
 }  // namespace content