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

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 <queue>
 #include <vector>
 
 #include "ash/ash_constants.h"
@@ skipping 634 matching lines @@
       // Virtual keyboard may be deactivated while still showing, notify all
       // observers that keyboard bounds changed to 0 before remove them.
       keyboard_controller->NotifyKeyboardBoundsChanging(gfx::Rect());
       keyboard_controller->RemoveObserver(shelf()->shelf_layout_manager());
       keyboard_controller->RemoveObserver(panel_layout_manager_);
       keyboard_controller->RemoveObserver(docked_layout_manager_);
     }
   }
 }
 
+bool RootWindowController::IsVirtualKeyboardWindow(aura::Window* window) {
+  aura::Window* parent = GetContainer(
+      kShellWindowId_VirtualKeyboardParentContainer);
+  return parent ? parent->Contains(window) : false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // RootWindowController, private:
 
 RootWindowController::RootWindowController(aura::WindowTreeHost* host)
     : host_(host),
       root_window_layout_(NULL),
       docked_layout_manager_(NULL),
       panel_layout_manager_(NULL),
       touch_hud_debug_(NULL),
       touch_hud_projection_(NULL) {
@@ skipping 340 matching lines @@
     DisableTouchHudProjection();
 }
 
 RootWindowController* GetRootWindowController(
     const aura::Window* root_window) {
   return root_window ? GetRootWindowSettings(root_window)->controller : NULL;
 }
 
 }  // namespace internal
 }  // namespace ash