Removes WindowManager::kShadowStyle_Property

services/ui/public/interfaces/window_manager.mojom

Index: services/ui/public/interfaces/window_manager.mojom
diff --git a/services/ui/public/interfaces/window_manager.mojom b/services/ui/public/interfaces/window_manager.mojom
index 1215261eeb3105f9a20368e7224e2e9296374aba..49da843c9a929d1d3cf231c657a03135ab0e0e8e 100644
--- a/services/ui/public/interfaces/window_manager.mojom
+++ b/services/ui/public/interfaces/window_manager.mojom
@@ -144,11 +144,6 @@ interface WindowManager {
 
   // End long lived properties. ------------------------------------------------
 
-  // Shadow style for the window. Type: mojom::ShadowStyle.
-  // TODO(sky): this is currently unused, either wire up or nuke:
-  // http://crbug.com/671714.
-  const string kShadowStyle_Property = "prop:shadow-style";
-
   // Called immediately when the WindowManager is obtained.
   OnConnect(uint16 client_id);