Whitelist virtual keyboard container to process events at login screen

ash/root_window_controller.cc

 // 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.
 
 #include "ash/root_window_controller.h"
 
 #include <vector>
 
 #include "ash/ash_constants.h"
 #include "ash/ash_switches.h"
@@ skipping 469 matching lines @@
     keyboard::KeyboardControllerProxy* proxy =
         Shell::GetInstance()->delegate()->CreateKeyboardControllerProxy();
     keyboard_controller_.reset(
         new keyboard::KeyboardController(proxy));
 
     keyboard_controller_->AddObserver(shelf()->shelf_layout_manager());
     keyboard_controller_->AddObserver(panel_layout_manager_);
 
     aura::Window* keyboard_container =
         keyboard_controller_->GetContainerWindow();
+    keyboard_container->set_id(kShellWindowId_VirtualKeyboardContainer);
     parent->AddChild(keyboard_container);
     keyboard_container->SetBounds(parent->bounds());
   }
 }
 
 
 ////////////////////////////////////////////////////////////////////////////////
 // RootWindowController, private:
 
 void RootWindowController::InitLayoutManagers() {
@@ skipping 269 matching lines @@
 
 void RootWindowController::OnTouchHudProjectionToggled(bool enabled) {
   if (enabled)
     EnableTouchHudProjection();
   else
     DisableTouchHudProjection();
 }
 
 }  // namespace internal
 }  // namespace ash