Index: ui/aura/window_tree_host_delegate.h |
diff --git a/ui/aura/window_tree_host_delegate.h b/ui/aura/window_tree_host_delegate.h |
index a78765123544b986a4d70a83f8e0ac653d472794..fc40a1fae5ad3d4751ee2d4ce6325d4e0eff6583 100644 |
--- a/ui/aura/window_tree_host_delegate.h |
+++ b/ui/aura/window_tree_host_delegate.h |
@@ -53,6 +53,7 @@ class AURA_EXPORT RootWindowHostDelegate { |
virtual float GetDeviceScaleFactor() = 0; |
virtual RootWindow* AsRootWindow() = 0; |
+ virtual const RootWindow* AsRootWindow() const = 0; |
protected: |
virtual ~RootWindowHostDelegate() {} |