Add support for managing active state of platform apps

chrome/browser/ui/cocoa/extensions/shell_window_cocoa.mm

 // 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/cocoa/extensions/shell_window_cocoa.h"
 
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/cocoa/browser_window_utils.h"
 #include "chrome/browser/ui/cocoa/extensions/extension_view_mac.h"
@@ skipping 50 matching lines @@
 }
 
 bool ShellWindowCocoa::IsMinimized() const {
   return [window() isMiniaturized];
 }
 
 bool ShellWindowCocoa::IsFullscreen() const {
   return false;
 }
 
+gfx::NativeWindow ShellWindowCocoa::GetNativeWindow() {
+  return window();
+}
+
 gfx::Rect ShellWindowCocoa::GetRestoredBounds() const {
   // Flip coordinates based on the primary screen.
   NSScreen* screen = [[NSScreen screens] objectAtIndex:0];
   NSRect frame = [window() frame];
   gfx::Rect bounds(frame.origin.x, 0, NSWidth(frame), NSHeight(frame));
   bounds.set_y(NSHeight([screen frame]) - NSMaxY(frame));
   return bounds;
 }
 
 gfx::Rect ShellWindowCocoa::GetBounds() const {
@@ skipping 88 matching lines @@
   return [window_controller_ window];
 }
 
 // static
 ShellWindow* ShellWindow::CreateImpl(Profile* profile,
                                      const extensions::Extension* extension,
                                      const GURL& url,
                                      const ShellWindow::CreateParams params) {
   return new ShellWindowCocoa(profile, extension, url, params);
 }