Add a full screen virtual keyboard to virtual keyboard root window

ash/display/display_controller.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_DISPLAY_DISPLAY_CONTROLLER_H_
 #define ASH_DISPLAY_DISPLAY_CONTROLLER_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 66 matching lines @@
   static const gfx::Display& GetPrimaryDisplay();
 
   // Returns the number of display. This is safe to use after
   // ash::Shell is deleted.
   static int GetNumDisplays();
 
   internal::MirrorWindowController* mirror_window_controller() {
     return mirror_window_controller_.get();
   }
 
+  internal::VirtualKeyboardWindowController*
+      virtual_keyboard_window_controller() {
+    return virtual_keyboard_window_controller_.get();
+  }
+
   // Initializes primary display.
   void InitPrimaryDisplay();
 
   // Initialize secondary displays.
   void InitSecondaryDisplays();
 
   // Add/Remove observers.
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
@@ skipping 122 matching lines @@
   // restore the cursor location when display configuration
   // changed.
   gfx::Point cursor_location_in_native_coords_for_restore_;
 
   DISALLOW_COPY_AND_ASSIGN(DisplayController);
 };
 
 }  // namespace ash
 
 #endif  // ASH_DISPLAY_DISPLAY_CONTROLLER_H_