Make EnableViewSourceMode a FrameMsg

content/browser/frame_host/render_frame_host_manager.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/browser/frame_host/render_frame_host_manager.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <utility>
@@ skipping 2143 matching lines @@
   // original site).  In that case, we have a proxy for the current RFH but
   // haven't deleted it yet.  The new navigation will swap it back in, so we can
   // delete the proxy.
   DeleteRenderFrameProxyHost(new_instance.get());
 
   UpdatePendingWebUIOnCurrentFrameHost(dest_url, bindings);
 
   // The renderer can exit view source mode when any error or cancellation
   // happen. We must overwrite to recover the mode.
   if (dest_is_view_source_mode) {
-    render_frame_host_->render_view_host()->Send(
-        new ViewMsg_EnableViewSourceMode(
-            render_frame_host_->render_view_host()->GetRoutingID()));
+    DCHECK(!render_frame_host_->GetParent());
+    render_frame_host_->Send(
+        new FrameMsg_EnableViewSourceMode(render_frame_host_->GetRoutingID()));
   }
 
   return render_frame_host_.get();
 }
 
 void RenderFrameHostManager::UpdatePendingWebUIOnCurrentFrameHost(
     const GURL& dest_url,
     int entry_bindings) {
   bool pending_webui_changed =
       render_frame_host_->UpdatePendingWebUI(dest_url, entry_bindings);
@@ skipping 277 matching lines @@
   } else if (pending_render_frame_host_) {
     send_msg(pending_render_frame_host_.get(),
              pending_render_frame_host_->GetRoutingID(), msg);
   }
 
   msg->set_routing_id(render_frame_host_->GetRoutingID());
   render_frame_host_->Send(msg);
 }
 
 }  // namespace content