Fix crash bugs of FramePainter.

ash/wm/window_properties.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_WM_WINDOW_PROPERTIES_H_
 #define ASH_WM_WINDOW_PROPERTIES_H_
 
 #include "ash/ash_export.h"
 #include "ash/wm/property_util.h"
 #include "ash/wm/shadow_types.h"
 #include "ui/aura/window.h"
+#include "ui/aura/window_property.h"
 #include "ui/base/ui_base_types.h"
 
 namespace ui_controls {
 class UIControlsAura;
 }
 
 namespace ash {
 class FramePainter;
 namespace internal {
 class AlwaysOnTopController;
@@ skipping 24 matching lines @@
 
 extern const aura::WindowProperty<RootWindowController*>* const
     kRootWindowControllerKey;
 
 // A property key describing the drop shadow that should be displayed under the
 // window.  If unset, no shadow is displayed.
 extern const aura::WindowProperty<ShadowType>* const kShadowTypeKey;
 
 // A property key to remember the frame painter for the solo-window in the root
 // window. It is only available for root windows.
-extern const aura::WindowProperty<ash::FramePainter*>* const
+ASH_EXPORT extern const aura::WindowProperty<ash::FramePainter*>* const
     kSoloWindowFramePainterKey;
 
 // If this is set to true, the window stays in the same root window
 // even if the bounds outside of its root window is set.
 // This is exported as it's used in the tests.
 ASH_EXPORT extern const aura::WindowProperty<bool>* const
     kStayInSameRootWindowKey;
 
 // Used to store a ui_controls for each root window.
 extern const aura::WindowProperty<ui_controls::UIControlsAura*>* const
     kUIControlsKey;
 
 // Property to tell if the container uses the screen coordinates.
 extern const aura::WindowProperty<bool>* const kUsesScreenCoordinatesKey;
 
 extern const aura::WindowProperty<WindowPersistsAcrossAllWorkspacesType>* const
     kWindowPersistsAcrossAllWorkspacesKey;
 
 // True if the window is controlled by the workspace manager.
 extern const aura::WindowProperty<bool>* const
     kWindowTrackedByWorkspaceKey;
 
 // Alphabetical sort.
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_WINDOW_PROPERTIES_H_