Makes DesktopWindowTreeHostXxx to dispatch key event to InputMethod.

ash/host/ash_remote_window_tree_host_win.cc

 // 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.
 
 #include "ash/host/ash_remote_window_tree_host_win.h"
 
 #include "ash/host/root_window_transformer.h"
 #include "ash/ime/input_method_event_handler.h"
+#include "ui/events/event_processor.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/transform.h"
 
 namespace ash {
 
 AshRemoteWindowTreeHostWin::AshRemoteWindowTreeHostWin(HWND remote_hwnd)
     : aura::RemoteWindowTreeHostWin(),
       transformer_helper_(this) {
   SetRemoteWindowHandle(remote_hwnd);
   transformer_helper_.Init();
@@ skipping 35 matching lines @@
 
 void AshRemoteWindowTreeHostWin::UpdateRootWindowSize(
     const gfx::Size& host_size) {
   transformer_helper_.UpdateWindowSize(host_size);
 }
 
 bool AshRemoteWindowTreeHostWin::DispatchKeyEventPostIME(
     const ui::KeyEvent& event) {
   ui::KeyEvent event_copy(event);
   input_method_handler()->SetPostIME(true);
-  ui::EventSource::DeliverEventToProcessor(&event_copy);
+  ui::EventDispatchDetails details =
+      event_processor()->OnEventFromSource(&event_copy);
+  if (details.dispatcher_destroyed)
+    return true;
   input_method_handler()->SetPostIME(false);
   return event_copy.stopped_propagation();
 }
 
-ui::EventDispatchDetails AshRemoteWindowTreeHostWin::DeliverEventToProcessor(
-    ui::Event* event) {
-  return ui::EventSource::DeliverEventToProcessor(event);
-}
-
 }  // namespace ash