Cache the object given to the chrome.app.window.create callback

chrome/browser/ui/extensions/shell_window.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_EXTENSIONS_SHELL_WINDOW_H_
 #define CHROME_BROWSER_UI_EXTENSIONS_SHELL_WINDOW_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
 #include "chrome/browser/extensions/extension_keybinding_registry.h"
@@ skipping 55 matching lines @@
     gfx::Size maximum_size;
 
     std::string window_key;
   };
 
   static ShellWindow* Create(Profile* profile,
                              const extensions::Extension* extension,
                              const GURL& url,
                              const CreateParams& params);
 
+  const std::string& window_key() const { return window_key_; }
   const SessionID& session_id() const { return session_id_; }
   const extensions::Extension* extension() const { return extension_; }
   TabContents* tab_contents() const { return contents_.get(); }
   content::WebContents* web_contents() const { return web_contents_; }
   Profile* profile() const { return profile_; }
   const gfx::Image& app_icon() const { return app_icon_; }
 
   BaseWindow* GetBaseWindow();
   gfx::NativeWindow GetNativeWindow() {
     return GetBaseWindow()->GetNativeWindow();
@@ skipping 113 matching lines @@
 
   // Used for loading app_icon_.
   scoped_ptr<ImageLoadingTracker> app_icon_loader_;
 
   scoped_ptr<NativeShellWindow> native_window_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellWindow);
 };
 
 #endif  // CHROME_BROWSER_UI_EXTENSIONS_SHELL_WINDOW_H_