Fix bug 145175: [Win] Frameless app windows are not resizable if no draggable region is specified

chrome/browser/ui/extensions/shell_window.cc

 // Copyright (c) 2012 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 "chrome/browser/ui/extensions/shell_window.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/shell_window_geometry_cache.h"
@@ skipping 402 matching lines @@
                           const content::NotificationDetails& details) {
   switch (type) {
     case content::NOTIFICATION_RENDER_VIEW_HOST_CHANGED: {
       // TODO(jeremya): once http://crbug.com/123007 is fixed, we'll no longer
       // need to suspend resource requests here (the call in the constructor
       // should be enough).
       content::Details<std::pair<RenderViewHost*, RenderViewHost*> >
           host_details(details);
       if (host_details->first)
         SuspendRenderViewHost(host_details->second);
+      // 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_window_->RenderViewHostChanged();
       break;
     }
     case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
       const extensions::Extension* unloaded_extension =
           content::Details<extensions::UnloadedExtensionInfo>(
               details)->extension;
       if (extension_ == unloaded_extension)
         native_window_->Close();
       break;
     }
@@ skipping 51 matching lines @@
     const extensions::DraggableRegion& region = *iter;
     sk_region->op(
         region.bounds.x(),
         region.bounds.y(),
         region.bounds.right(),
         region.bounds.bottom(),
         region.draggable ? SkRegion::kUnion_Op : SkRegion::kDifference_Op);
   }
   return sk_region;
 }