Do not hide the old RenderWidgetHostView when commiting a navigation.

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 2137 matching lines @@
     // If the view is gone, then this RenderViewHost died while it was hidden.
     // We ignored the RenderProcessGone call at the time, so we should send it
     // now to make sure the sad tab shows up, etc.
     DCHECK(!render_frame_host_->IsRenderFrameLive());
     DCHECK(!render_frame_host_->render_view_host()->IsRenderViewLive());
     render_frame_host_->ResetLoadingState();
     delegate_->RenderProcessGoneFromRenderManager(
         render_frame_host_->render_view_host());
   }
 
-  // For top-level frames, also hide the old RenderViewHost's view.
-  // TODO(creis): As long as show/hide are on RVH, we don't want to hide on
-  // subframe navigations or we will interfere with the top-level frame.
-  if (is_main_frame &&
-      old_render_frame_host->render_view_host()->GetWidget()->GetView()) {
-    old_render_frame_host->render_view_host()->GetWidget()->GetView()->Hide();
-  }
-
   // Make sure the size is up to date.  (Fix for bug 1079768.)
   delegate_->UpdateRenderViewSizeForRenderManager();
 
   if (will_focus_location_bar) {
     delegate_->SetFocusToLocationBar(false);
   } else if (focus_render_view && render_frame_host_->GetView()) {
     if (is_main_frame) {
       render_frame_host_->GetView()->Focus();
     } else {
       // The main frame's view is already focused, but we need to set
@@ skipping 533 matching lines @@
                                              resolved_url)) {
     DCHECK(!dest_instance ||
            dest_instance == render_frame_host_->GetSiteInstance());
     return false;
   }
 
   return true;
 }
 
 }  // namespace content