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

chrome/browser/ui/toolbar/toolbar_actions_bar.h

Index: chrome/browser/ui/toolbar/toolbar_actions_bar.h
diff --git a/chrome/browser/ui/toolbar/toolbar_actions_bar.h b/chrome/browser/ui/toolbar/toolbar_actions_bar.h
index ddba8259bb3dcd4e02dcc8e51dabc275b6e5ec2b..445eb9ca368da241e2aded2b49db4f7f2c8c8dbe 100644
--- a/chrome/browser/ui/toolbar/toolbar_actions_bar.h
+++ b/chrome/browser/ui/toolbar/toolbar_actions_bar.h
@@ -52,10 +52,12 @@ class ToolbarActionsBar : public ToolbarActionsModel::Observer {
   struct PlatformSettings {
     PlatformSettings();
 
-    // The spacing between each of the icons, between the start of the
-    // container and the first item, and between the last item and end of
-    // the container.
+    // The spacing between each of the icons.
     int item_spacing;
+    // The space between the start of the container and the first item.
+    int left_padding;
+    // The space between the last item and the end of the container.
+    int right_padding;
     // The number of icons per row in the overflow menu.
     int icons_per_overflow_menu_row;
     // Whether or not the overflow menu is displayed as a chevron (this is being