aura: Add RootWindowObserver::OnKeyboardMappingChanged().

ui/aura/root_window.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 UI_AURA_ROOT_WINDOW_H_
 #define UI_AURA_ROOT_WINDOW_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
@@ skipping 132 matching lines @@
   // event-dispatching function (e.g. for touch/mouse/keyboard events), gesture
   // events are dispatched from GestureRecognizer instead of RootWindowHost.
   bool DispatchGestureEvent(GestureEvent* event);
 
   // Called when the host changes size.
   void OnHostResized(const gfx::Size& size);
 
   // Invoked when |window| is being destroyed.
   void OnWindowDestroying(Window* window);
 
-  // Invokved when |window|'s bounds is changed. |contained_mouse| indicates if
+  // Invoked when |window|'s bounds have changed. |contained_mouse| indicates if
   // the bounds before change contained the |last_moust_location()|.
   void OnWindowBoundsChanged(Window* window, bool contained_mouse);
 
-  // Invokved when |window|'s visibility is changed.
+  // Invoked when |window|'s visibility is changed.
   void OnWindowVisibilityChanged(Window* window, bool is_visible);
 
-  // Invokved when |window|'s tranfrom has changed. |contained_mouse|
+  // Invoked when |window|'s tranfrom has changed. |contained_mouse|
   // indicates if the bounds before change contained the
   // |last_moust_location()|.
   void OnWindowTransformed(Window* window, bool contained_mouse);
 
+  // Invoked when the keyboard mapping (in X11 terms: the mapping between
+  // keycodes and keysyms) has changed.
+  void OnKeyboardMappingChanged();
+
   // Add/remove observer. There is no need to remove the observer if
   // the root window is being deleted. In particular, you SHOULD NOT remove
   // in |WindowObserver::OnWindowDestroying| of the observer observing
   // the root window because it is too late to remove it.
   void AddRootWindowObserver(RootWindowObserver* observer);
   void RemoveRootWindowObserver(RootWindowObserver* observer);
 
   // Posts |native_event| to the platform's event queue.
   void PostNativeEvent(const base::NativeEvent& native_event);
 
@@ skipping 189 matching lines @@
   bool draw_on_compositor_unlock_;
 
   int draw_trace_count_;
 
   DISALLOW_COPY_AND_ASSIGN(RootWindow);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_ROOT_WINDOW_H_