Introduces AppActivity and handler of chrome.shell API.

athena/content/web_activity.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 ATHENA_CONTENT_PUBLIC_WEB_ACTIVITY_H_
 #define ATHENA_CONTENT_PUBLIC_WEB_ACTIVITY_H_
 
 #include "athena/activity/public/activity.h"
 #include "athena/activity/public/activity_view_model.h"
 #include "content/public/browser/web_contents_observer.h"
 
 namespace content {
 class BrowserContext;
+class WebContents;
 }
 
 namespace views {
 class WebView;
 }
 
 namespace athena {
 
 class WebActivity : public Activity,
                     public ActivityViewModel,
@@ skipping 13 matching lines @@
   virtual views::View* GetContentsView() OVERRIDE;
 
   // content::WebContentsObserver:
   virtual void TitleWasSet(content::NavigationEntry* entry,
                            bool explicit_set) OVERRIDE;
   virtual void DidUpdateFaviconURL(
       const std::vector<content::FaviconURL>& candidates) OVERRIDE;
 
  private:
   content::BrowserContext* browser_context_;
+  content::WebContents* web_contents_;
   const GURL url_;
   views::WebView* web_view_;
 
   DISALLOW_COPY_AND_ASSIGN(WebActivity);
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_CONTENT_WEB_ACTIVITY_H_