Implement High Contrast mode for Chrome OS

ash/shell.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 ASH_SHELL_H_
 #define ASH_SHELL_H_
 #pragma once
 
 #include <utility>
 #include <vector>
@@ skipping 35 matching lines @@
 }
 namespace views {
 class NonClientFrameView;
 class Widget;
 }
 
 namespace ash {
 
 class AcceleratorController;
 class DesktopBackgroundController;
+class HighContrastController;
 class Launcher;
 class NestedDispatcherController;
 class PowerButtonController;
 class ScreenAsh;
 class ShellDelegate;
 class ShellObserver;
 class SystemTrayDelegate;
 class SystemTray;
 class UserWallpaperDelegate;
 class VideoDetector;
@@ skipping 164 matching lines @@
   internal::FocusCycler* focus_cycler() {
     return focus_cycler_.get();
   }
 
   ShellDelegate* delegate() { return delegate_.get(); }
   SystemTrayDelegate* tray_delegate() { return tray_delegate_.get(); }
   UserWallpaperDelegate* user_wallpaper_delegate() {
     return user_wallpaper_delegate_.get();
   }
 
+  HighContrastController* high_contrast_controller() {
+    return high_contrast_controller_.get();
+  }
+
   internal::MagnificationController* magnification_controller() {
     return magnification_controller_.get();
   }
+
   internal::ScreenDimmer* screen_dimmer() {
     return screen_dimmer_.get();
   }
 
   Launcher* launcher() { return launcher_.get(); }
 
   const ScreenAsh* screen() { return screen_; }
 
   // Force the shelf to query for it's current visibility state.
   void UpdateShelfVisibility();
@@ skipping 88 matching lines @@
   scoped_ptr<internal::ShadowController> shadow_controller_;
   scoped_ptr<internal::TooltipController> tooltip_controller_;
   scoped_ptr<internal::VisibilityController> visibility_controller_;
   scoped_ptr<DesktopBackgroundController> desktop_background_controller_;
   scoped_ptr<PowerButtonController> power_button_controller_;
   scoped_ptr<VideoDetector> video_detector_;
   scoped_ptr<WindowCycleController> window_cycle_controller_;
   scoped_ptr<internal::FocusCycler> focus_cycler_;
   scoped_ptr<internal::EventClientImpl> event_client_;
   scoped_ptr<internal::MonitorController> monitor_controller_;
+  scoped_ptr<HighContrastController> high_contrast_controller_;
   scoped_ptr<internal::MagnificationController> magnification_controller_;
   scoped_ptr<internal::ScreenDimmer> screen_dimmer_;
 
   // An event filter that rewrites or drops a key event.
   scoped_ptr<internal::KeyRewriterEventFilter> key_rewriter_filter_;
 
   // An event filter that pre-handles key events while the partial
   // screenshot UI is active.
   scoped_ptr<internal::PartialScreenshotEventFilter> partial_screenshot_filter_;
 
@@ skipping 30 matching lines @@
 
   // Used by ash/shell.
   content::BrowserContext* browser_context_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_