[Mac] Change the omnibox decoration padding

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

Index: chrome/browser/ui/cocoa/location_bar/location_bar_decoration.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.mm b/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.mm
index 0c010f056896273eb9daaff64c76eaf34fe05859..17863697e9cf5873466309c2a12deb15c125d1ec 100644
--- a/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.mm
+++ b/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.mm
@@ -121,10 +121,10 @@ void LocationBarDecoration::DrawInFrame(NSRect frame, NSView* control_view) {
   NOTREACHED();
 }
 
-void LocationBarDecoration::DrawWithBackgroundInFrame(NSRect background_frame,
-                                                      NSRect frame,
+void LocationBarDecoration::DrawWithBackgroundInFrame(NSRect frame,
                                                       NSView* control_view) {
-  // Default to no background.
+  // TODO(spqchan): Draw the hovered/pressed background.
+  // See crbug.com/588377.
   DrawInFrame(frame, control_view);
 }