Mash: Show app icons in shelf based on the Widget's app icon

mash/wm/user_window_controller_impl.h

Index: mash/wm/user_window_controller_impl.h
diff --git a/mash/wm/user_window_controller_impl.h b/mash/wm/user_window_controller_impl.h
index 3b6f9c4c22b1f4351b7e5346ba89865adbf9ccf5..c974f6fc0ba26bb8e71f08b5b1d81b956303f11b 100644
--- a/mash/wm/user_window_controller_impl.h
+++ b/mash/wm/user_window_controller_impl.h
@@ -17,7 +17,7 @@ namespace mash {
 namespace wm {
 
 class RootWindowController;
-class WindowTitleObserver;
+class WindowPropertyObserver;
 
 class UserWindowControllerImpl : public mojom::UserWindowController,
                                  public mus::WindowObserver,
@@ -49,7 +49,7 @@ class UserWindowControllerImpl : public mojom::UserWindowController,
 
   RootWindowController* root_controller_;
   mojom::UserWindowObserverPtr user_window_observer_;
-  scoped_ptr<WindowTitleObserver> window_title_observer_;
+  scoped_ptr<WindowPropertyObserver> window_property_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(UserWindowControllerImpl);
 };