Disable core keyboard device as well when entering touchview.

ash/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard_x11.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 ASH_WM_MAXIMIZE_MODE_SCOPED_DISABLE_INTERNAL_MOUSE_AND_KEYBOARD_X11_H_
 #define ASH_WM_MAXIMIZE_MODE_SCOPED_DISABLE_INTERNAL_MOUSE_AND_KEYBOARD_X11_H_
 
 #include <vector>
 
 #include "ash/ash_export.h"
@@ skipping 12 matching lines @@
  public:
   ScopedDisableInternalMouseAndKeyboardX11();
   virtual ~ScopedDisableInternalMouseAndKeyboardX11();
 
   // ui::PlatformEventObserver:
   virtual void WillProcessEvent(const ui::PlatformEvent& event) OVERRIDE;
   virtual void DidProcessEvent(const ui::PlatformEvent& event) OVERRIDE;
  private:
   int touchpad_device_id_;
   int keyboard_device_id_;
+  int core_keyboard_device_id_;
 
   // Tracks the last known mouse cursor location caused before blocking the
   // internal touchpad or caused by an external mouse.
   gfx::Point last_mouse_location_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedDisableInternalMouseAndKeyboardX11);
 };
 
 }  // namespace ash
 
 #endif // ASH_WM_MAXIMIZE_MODE_SCOPED_DISABLE_INTERNAL_MOUSE_AND_KEYBOARD_X11_H_