Add a way to fetch window frame metrics from NativeShellWindow

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 269 matching lines @@
   native_window_->HandleKeyboardEvent(event);
 }
 
 void ShellWindow::OnNativeClose() {
   extensions::ShellWindowRegistry::Get(profile_)->RemoveShellWindow(this);
   content::RenderViewHost* rvh = web_contents_->GetRenderViewHost();
   rvh->Send(new ExtensionMsg_AppWindowClosed(rvh->GetRoutingID()));
   delete this;
 }
 
-BaseWindow* ShellWindow::GetBaseWindow() {
+NativeShellWindow* ShellWindow::GetBaseWindow() {
   return native_window_.get();
 }
 
+gfx::NativeWindow ShellWindow::GetNativeWindow() {
+  return GetBaseWindow()->GetNativeWindow();
+}
+
 string16 ShellWindow::GetTitle() const {
   // WebContents::GetTitle() will return the page's URL if there's no <title>
   // specified. However, we'd prefer to show the name of the extension in that
   // case, so we directly inspect the NavigationEntry's title.
   if (!web_contents()->GetController().GetActiveEntry() ||
       web_contents()->GetController().GetActiveEntry()->GetTitle().empty())
     return UTF8ToUTF16(extension()->name());
   string16 title = web_contents()->GetTitle();
   Browser::FormatTitleForDisplay(&title);
   return title;
@@ skipping 201 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;
 }