Add GetAppDefaultIcon() to AppDelegate

chrome/browser/ui/apps/chrome_app_delegate.h

 // Copyright 2014 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_APPS_CHROME_APP_DELEGATE_H_
 #define CHROME_BROWSER_UI_APPS_CHROME_APP_DELEGATE_H_
 
 #include "apps/app_delegate.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/base/window_open_disposition.h"
@@ skipping 31 matching lines @@
       SkColor initial_color) OVERRIDE;
   virtual void RunFileChooser(
       content::WebContents* tab,
       const content::FileChooserParams& params) OVERRIDE;
   virtual void RequestMediaAccessPermission(
       content::WebContents* web_contents,
       const content::MediaStreamRequest& request,
       const content::MediaResponseCallback& callback,
       const extensions::Extension* extension) OVERRIDE;
   virtual int PreferredIconSize() OVERRIDE;
+  virtual gfx::ImageSkia GetAppDefaultIcon() OVERRIDE;
   virtual void SetWebContentsBlocked(content::WebContents* web_contents,
                                      bool blocked) OVERRIDE;
   virtual bool IsWebContentsVisible(
       content::WebContents* web_contents) OVERRIDE;
 
   scoped_ptr<NewWindowContentsDelegate> new_window_contents_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeAppDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_APPS_CHROME_APP_DELEGATE_H_