Move MdFocusRing to be a property of FocusManager.

ui/views/view.h

Index: ui/views/view.h
diff --git a/ui/views/view.h b/ui/views/view.h
index 55cc02bb54da4eaa205df9f8adc17d5f84245279..ac638b6bf9977739593422386470caf8e2065345 100644
--- a/ui/views/view.h
+++ b/ui/views/view.h
@@ -1150,6 +1150,12 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   void Focus();
   void Blur();
 
+  // See documentation on variable.
+  bool should_use_md_focus_ring() { return should_use_md_focus_ring_; }
+  void set_should_use_md_focus_ring(bool use) {
+    should_use_md_focus_ring_ = use;
+  }
+
   // System events -------------------------------------------------------------
 
   // Called when the UI theme (not the NativeTheme) has changed, overriding
@@ -1546,6 +1552,9 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   // The focus behavior of the view in regular and accessibility mode.
   FocusBehavior focus_behavior_;
 
+  // True if this view wants to display focus via a Harmony/MD style focus ring.
+  bool should_use_md_focus_ring_;
+
   // Context menus -------------------------------------------------------------
 
   // The menu controller.