Make EnableViewSourceMode a FrameMsg

content/browser/frame_host/navigator_impl.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/navigator_impl.h"
 
 #include <utility>
 
 #include "base/metrics/histogram.h"
 #include "base/time/time.h"
@@ skipping 839 matching lines @@
   RenderFrameHostImpl* render_frame_host =
       frame_tree_node->render_manager()->GetFrameHostForNavigation(
           *navigation_request);
 
   // The renderer can exit view source mode when any error or cancellation
   // happen. When reusing the same renderer, overwrite to recover the mode.
   if (navigation_request->is_view_source() &&
       render_frame_host ==
           frame_tree_node->render_manager()->current_frame_host()) {
     DCHECK(!render_frame_host->GetParent());
-    render_frame_host->render_view_host()->Send(
-        new ViewMsg_EnableViewSourceMode(
-            render_frame_host->render_view_host()->GetRoutingID()));
+    render_frame_host->Send(
+        new FrameMsg_EnableViewSourceMode(render_frame_host->GetRoutingID()));
   }
 
   CheckWebUIRendererDoesNotDisplayNormalURL(
       render_frame_host, navigation_request->common_params().url);
 
   navigation_request->TransferNavigationHandleOwnership(render_frame_host);
   render_frame_host->navigation_handle()->ReadyToCommitNavigation(
       render_frame_host, response ? response->head.headers : nullptr);
   render_frame_host->CommitNavigation(response, std::move(body),
                                       navigation_request->common_params(),
@@ skipping 259 matching lines @@
   if (pending_entry != controller_->GetVisibleEntry() ||
       !should_preserve_entry) {
     controller_->DiscardPendingEntry(true);
 
     // Also force the UI to refresh.
     controller_->delegate()->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
   }
 }
 
 }  // namespace content