Remove DisplayState from the public interface for DisplayConfigurator

extensions/shell/browser/shell_desktop_controller_aura.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 EXTENSIONS_SHELL_BROWSER_SHELL_DESKTOP_CONTROLLER_AURA_H_
 #define EXTENSIONS_SHELL_BROWSER_SHELL_DESKTOP_CONTROLLER_AURA_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 69 matching lines @@
                                  aura::Window* window,
                                  const gfx::Rect& bounds) override;
 
 #if defined(OS_CHROMEOS)
   // chromeos::PowerManagerClient::Observer overrides:
   void PowerButtonEventReceived(bool down,
                                 const base::TimeTicks& timestamp) override;
 
   // ui::DisplayConfigurator::Observer overrides.
   void OnDisplayModeChanged(
-      const std::vector<ui::DisplayConfigurator::DisplayState>& displays)
-      override;
+      const ui::DisplayConfigurator::DisplayStateList& displays) override;
 #endif
 
   // aura::WindowTreeHostObserver overrides:
   void OnHostCloseRequested(const aura::WindowTreeHost* host) override;
 
  protected:
   // Creates and sets the aura clients and window manager stuff. Subclass may
   // initialize different sets of the clients.
   virtual void InitWindowManager();
 
@@ skipping 35 matching lines @@
 
   // NativeAppWindow::Close() deletes the AppWindow.
   std::vector<AppWindow*> app_windows_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellDesktopControllerAura);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_SHELL_BROWSER_SHELL_DESKTOP_CONTROLLER_AURA_H_