cocoa: don't draw focus rings over the URL scheme in the location bar

chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h

Index: chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h
diff --git a/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h b/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h
index f0df6785dcefc09b511c94cbc03aaa8112065370..beaae57e1c326106c35f91478cc3519c149b830e 100644
--- a/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h
+++ b/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h
@@ -153,6 +153,11 @@ class LocationBarDecoration {
   // different from its frame in the Cocoa sense).
   void UpdateAccessibilityView(NSRect apparent_frame);
 
+  // Computes the real bounds the focus ring should be drawn around for this
+  // decoration. Some decorations include visual spacing or separators in their
+  // bounds, but these should not be encompassed by the focus ring.
+  virtual NSRect GetRealFocusRingBounds(NSRect bounds) const;
+
   DecorationMouseState state() const { return state_; }
 
   bool active() const { return active_; }