Merge NOTIFICATION_RENDER_VIEW_HOST_CHANGED into NOTIFICATION_WEB_CONTENTS_SWAPPED.

apps/shell_window.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 "apps/shell_window.h"
 
 #include "apps/native_app_window.h"
 #include "apps/shell_window_geometry_cache.h"
 #include "apps/shell_window_registry.h"
 #include "base/strings/string_util.h"
@@ skipping 165 matching lines @@
     Maximize();
   else if (new_params.state == ui::SHOW_STATE_MINIMIZED)
     Minimize();
 
   OnNativeWindowChanged();
 
   // When the render view host is changed, the native window needs to know
   // about it in case it has any setup to do to make the renderer appear
   // properly. In particular, on Windows, the view's clickthrough region needs
   // to be set.
-  registrar_.Add(this, content::NOTIFICATION_RENDER_VIEW_HOST_CHANGED,
-                 content::Source<content::NavigationController>(
-                    &web_contents->GetController()));
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
                  content::Source<Profile>(profile_));
   // Close when the browser process is exiting.
   registrar_.Add(this, chrome::NOTIFICATION_APP_TERMINATING,
                  content::NotificationService::AllSources());
 
   shell_window_contents_->LoadContents(params.creator_process_id);
 
   // Prevent the browser process from shutting down while this window is open.
   chrome::StartKeepAlive();
@@ skipping 337 matching lines @@
 
 bool ShellWindow::IsFullscreenForTabOrPending(
     const content::WebContents* source) const {
   return fullscreen_for_tab_;
 }
 
 void ShellWindow::Observe(int type,
                           const content::NotificationSource& source,
                           const content::NotificationDetails& details) {
   switch (type) {
-    case content::NOTIFICATION_RENDER_VIEW_HOST_CHANGED: {
-      // TODO(jianli): once http://crbug.com/123007 is fixed, we'll no longer
-      // need to make the native window (ShellWindowViews specially) update
-      // the clickthrough region for the new RVH.
-      native_app_window_->RenderViewHostChanged();
-      break;
-    }
     case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
       const extensions::Extension* unloaded_extension =
           content::Details<extensions::UnloadedExtensionInfo>(
               details)->extension;
       if (extension_ == unloaded_extension)
         native_app_window_->Close();
       break;
     }
     case chrome::NOTIFICATION_APP_TERMINATING:
       native_app_window_->Close();
@@ skipping 91 matching lines @@
         region.bounds.x(),
         region.bounds.y(),
         region.bounds.right(),
         region.bounds.bottom(),
         region.draggable ? SkRegion::kUnion_Op : SkRegion::kDifference_Op);
   }
   return sk_region;
 }
 
 }  // namespace apps