Fix regression in dragging location bar right edge (Mac).

chrome/browser/ui/layout_constants.h

Index: chrome/browser/ui/layout_constants.h
diff --git a/chrome/browser/ui/layout_constants.h b/chrome/browser/ui/layout_constants.h
index 25856897d1b0146d810213f4d199bf1e4d84ce1a..a89217ab159d48c29931521762df7cf6f8d02436 100644
--- a/chrome/browser/ui/layout_constants.h
+++ b/chrome/browser/ui/layout_constants.h
@@ -97,6 +97,14 @@ enum LayoutConstant {
 
   // The horizontal space between most items in the toolbar.
   TOOLBAR_STANDARD_SPACING,
+
+  // Padding between the left edge of the toolbar actions container and its
+  // first item.
+  TOOLBAR_ACTIONS_LEFT_PADDING,
+
+  // Padding between the last item in the toolbar actions container and its
+  // right edge.
+  TOOLBAR_ACTIONS_RIGHT_PADDING
 };
 
 enum LayoutInset {