Makes DesktopWindowTreeHostXxx to dispatch key event to InputMethod.

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.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_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_
 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_
 
 #include <X11/extensions/shape.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
@@ skipping 191 matching lines @@
   // Dispatches a mouse event, taking mouse capture into account. If a
   // different host has capture, we translate the event to its coordinate space
   // and dispatch it to that host instead.
   void DispatchMouseEvent(ui::MouseEvent* event);
 
   // Dispatches a touch event, taking capture into account. If a different host
   // has capture, then touch-press events are translated to its coordinate space
   // and dispatched to that host instead.
   void DispatchTouchEvent(ui::TouchEvent* event);
 
+  // Dispatches a key event.
+  void DispatchKeyEvent(ui::KeyEvent* event);
+
   // Updates the location of |located_event| to be in |host|'s coordinate system
   // so that it can be dispatched to |host|.
   void ConvertEventToDifferentHost(ui::LocatedEvent* located_event,
                                    DesktopWindowTreeHostX11* host);
 
   // Resets the window region for the current widget bounds if necessary.
   void ResetWindowRegion();
 
   // Serializes an image to the format used by _NET_WM_ICON.
   void SerializeImageRepresentation(const gfx::ImageSkiaRep& rep,
@@ skipping 125 matching lines @@
   base::CancelableCallback<void()> delayed_resize_task_;
 
   base::WeakPtrFactory<DesktopWindowTreeHostX11> close_widget_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostX11);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_