Make keyboard controller a singleton.

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_
 
 #include <utility>
 #include <vector>
 
@@ skipping 29 matching lines @@
 class FocusClient;
 }
 }
 
 namespace gfx {
 class ImageSkia;
 class Point;
 class Rect;
 }
 
-namespace keyboard {
-class KeyboardController;
-}
-
 namespace ui {
 class Layer;
 class OutputConfigurator;
 }
 namespace views {
 class NonClientFrameView;
 class Widget;
 namespace corewm {
 class TooltipController;
 }
@@ skipping 258 matching lines @@
   // Adds/removes observer.
   void AddShellObserver(ShellObserver* observer);
   void RemoveShellObserver(ShellObserver* observer);
 
   // Turn the always maximize mode window manager on or off.
   void EnableMaximizeModeWindowManager(bool enable);
 
   // Test if the MaximizeModeWindowManager is enabled or not.
   bool IsMaximizeModeWindowManagerEnabled();
 
-  keyboard::KeyboardController* keyboard_controller() {
-    return keyboard_controller_.get();
-  }
-
   AcceleratorController* accelerator_controller() {
     return accelerator_controller_.get();
   }
 
   internal::DisplayManager* display_manager() {
     return display_manager_.get();
   }
   ::wm::InputMethodEventFilter* input_method_filter() {
     return input_method_filter_.get();
   }
@@ skipping 266 matching lines @@
   // |target_root_window_| never becomes NULL during the session.
   aura::Window* target_root_window_;
   aura::Window* scoped_target_root_window_;
 
   // The CompoundEventFilter owned by aura::Env object.
   scoped_ptr< ::wm::CompoundEventFilter> env_filter_;
 
   std::vector<WindowAndBoundsPair> to_restore_;
 
   scoped_ptr<UserMetricsRecorder> user_metrics_recorder_;
-  scoped_ptr<keyboard::KeyboardController> keyboard_controller_;
   scoped_ptr<NestedDispatcherController> nested_dispatcher_controller_;
   scoped_ptr<AcceleratorController> accelerator_controller_;
   scoped_ptr<ShellDelegate> delegate_;
   scoped_ptr<SystemTrayDelegate> system_tray_delegate_;
   scoped_ptr<SystemTrayNotifier> system_tray_notifier_;
   scoped_ptr<UserWallpaperDelegate> user_wallpaper_delegate_;
   scoped_ptr<SessionStateDelegate> session_state_delegate_;
   scoped_ptr<AccessibilityDelegate> accessibility_delegate_;
   scoped_ptr<NewWindowDelegate> new_window_delegate_;
   scoped_ptr<MediaDelegate> media_delegate_;
@@ skipping 107 matching lines @@
 
   // Injected content::GPUDataManager support.
   scoped_ptr<GPUSupport> gpu_support_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_