[Mac] Change the omnibox decoration padding

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 8ce2c46545ee9b7c77c140e860e650da942d32b0..754a0808316e99a7b66876a5cc5f24d0128a6dfd 100644
--- a/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h
+++ b/chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h
@@ -45,9 +45,7 @@ class LocationBarDecoration {
   // generated from an earlier call to |GetWidthForSpace()|, and the
   // |background_frame| will include the column of pixels exactly
   // between two decorations.
-  virtual void DrawWithBackgroundInFrame(NSRect background_frame,
-                                         NSRect frame,
-                                         NSView* control_view);
+  void DrawWithBackgroundInFrame(NSRect frame, NSView* control_view);
 
   // Returns the tooltip for this decoration, return |nil| for no tooltip.
   virtual NSString* GetToolTip();