Exempt status bubble windows from status bar darkening

ash/wm/window_properties.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/wm/window_properties.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/wm/always_on_top_controller.h"
 #include "ash/wm/shadow_types.h"
 #include "ui/aura/window_property.h"
 #include "ui/ui_controls/ui_controls_aura.h"
 
 // Property type for bool and ui::WindowShowState are
 // defined in aura.
 DECLARE_WINDOW_PROPERTY_TYPE(ash::internal::AlwaysOnTopController*);
 DECLARE_WINDOW_PROPERTY_TYPE(ash::internal::ShadowType);
 DECLARE_WINDOW_PROPERTY_TYPE(ash::WindowPersistsAcrossAllWorkspacesType)
 DECLARE_WINDOW_PROPERTY_TYPE(ui_controls::UIControlsAura*)
 DECLARE_WINDOW_PROPERTY_TYPE(ash::internal::RootWindowController*);
 
 namespace ash {
 namespace internal {
 DEFINE_OWNED_WINDOW_PROPERTY_KEY(ash::internal::AlwaysOnTopController,
                                  kAlwaysOnTopControllerKey,
                                  NULL);
 DEFINE_WINDOW_PROPERTY_KEY(
     bool, kChildWindowVisibilityChangesAnimatedKey, false);
+DEFINE_WINDOW_PROPERTY_KEY(bool, kIgnoredByShelfKey, false);
 DEFINE_WINDOW_PROPERTY_KEY(
     ui::WindowShowState, kRestoreShowStateKey, ui::SHOW_STATE_DEFAULT);
 DEFINE_WINDOW_PROPERTY_KEY(RootWindowController*,
                            kRootWindowControllerKey, NULL);
 DEFINE_WINDOW_PROPERTY_KEY(ShadowType, kShadowTypeKey, SHADOW_TYPE_NONE);
 DEFINE_OWNED_WINDOW_PROPERTY_KEY(ui_controls::UIControlsAura,
                                  kUIControlsKey,
                                  NULL);
 DEFINE_WINDOW_PROPERTY_KEY(bool, kUsesScreenCoordinatesKey, false);
 DEFINE_WINDOW_PROPERTY_KEY(ash::WindowPersistsAcrossAllWorkspacesType,
                            kWindowPersistsAcrossAllWorkspacesKey,
                            WINDOW_PERSISTS_ACROSS_ALL_WORKSPACES_VALUE_DEFAULT);
 DEFINE_WINDOW_PROPERTY_KEY(bool, kWindowTrackedByWorkspaceKey, true);
 
 }  // namespace internal
 }  // namespace ash