Prevent system modal dialog from blocking events to the virtual keyboard.

ash/root_window_controller.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 ASH_ROOT_WINDOW_CONTROLLER_H_
 #define ASH_ROOT_WINDOW_CONTROLLER_H_
 
 #include <map>
 
 #include "ash/ash_export.h"
@@ skipping 216 matching lines @@
   // Returns the topmost window or one of its transient parents, if any of them
   // are in fullscreen mode.
   const aura::Window* GetWindowForFullscreenMode() const;
 
   // Activate virtual keyboard on current root window controller.
   void ActivateKeyboard(keyboard::KeyboardController* keyboard_controller);
 
   // Deactivate virtual keyboard on current root window controller.
   void DeactivateKeyboard(keyboard::KeyboardController* keyboard_controller);
 
+  // Tests if a window is associated with the virtual keyboard.
+  bool IsVirtualKeyboardWindow(aura::Window* window);
+
  private:
   explicit RootWindowController(aura::WindowTreeHost* host);
   enum RootWindowType {
     PRIMARY,
     SECONDARY,
     VIRTUAL_KEYBOARD
   };
 
   // Initializes the RootWindowController.  |is_primary| is true if
   // the controller is for primary display.  |first_run_after_boot| is
@@ skipping 67 matching lines @@
 
 
 // Gets the RootWindowController for |root_window|.
 ASH_EXPORT RootWindowController* GetRootWindowController(
     const aura::Window* root_window);
 
 }  // namespace internal
 }  // ash
 
 #endif  //  ASH_ROOT_WINDOW_CONTROLLER_H_