Remove unreleased web app frame code from ChromeOS

chrome/browser/ui/extensions/hosted_app_browser_controller.h

 // Copyright 2015 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_HOSTED_APP_BROWSER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_EXTENSIONS_HOSTED_APP_BROWSER_CONTROLLER_H_
 
 #include <string>
 
 #include "base/macros.h"
 
 class Browser;
 
 namespace extensions {
 
 // Class to encapsulate logic to control the browser UI for hosted apps.
 class HostedAppBrowserController {
  public:
   // Indicates whether |browser| is a hosted app browser.
   static bool IsForHostedApp(Browser* browser);
 
   explicit HostedAppBrowserController(Browser* browser);
   ~HostedAppBrowserController();
 
-  // Whether the browser being controlled can ever show the location bar.
-  bool SupportsLocationBar() const;
-
   // Whether the browser being controlled should be currently showing the
   // location bar.
   bool ShouldShowLocationBar() const;
 
   // Updates the location bar visibility based on whether it should be
   // currently visible or not. If |animate| is set, the change will be
   // animated.
   void UpdateLocationBarVisibility(bool animate) const;
 
-  // Whether the controlled browser should use the web app style frame.
-  bool should_use_web_app_frame() const { return should_use_web_app_frame_; }
-
  private:
   Browser* browser_;
   const std::string extension_id_;
-  bool should_use_web_app_frame_;
 
   DISALLOW_COPY_AND_ASSIGN(HostedAppBrowserController);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_UI_EXTENSIONS_HOSTED_APP_BROWSER_CONTROLLER_H_