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

chrome/browser/ui/layout_constants.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_LAYOUT_CONSTANTS_H_
 #define CHROME_BROWSER_UI_LAYOUT_CONSTANTS_H_
 
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/size.h"
 
@@ skipping 79 matching lines @@
 
   // Additional horizontal padding between the elements in the toolbar.
   TOOLBAR_ELEMENT_PADDING,
 
   // Padding between the right edge of the location bar and the left edge of the
   // app menu icon when the browser actions container is not present.
   TOOLBAR_LOCATION_BAR_RIGHT_PADDING,
 
   // 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 {
   // The padding between the avatar icon and the frame border on the left, the
   // tabstrip on the right, and the toolbar on the bottom.
   AVATAR_ICON,
 
   // The padding above the top row and below the bottom row in the omnibox
   // dropdown.
   OMNIBOX_DROPDOWN,
@@ skipping 21 matching lines @@
   // The visible size of the new tab button; does not include any Fitts' Law
   // extensions.
   NEW_TAB_BUTTON,
 };
 
 int GetLayoutConstant(LayoutConstant constant);
 gfx::Insets GetLayoutInsets(LayoutInset inset);
 gfx::Size GetLayoutSize(LayoutSize size);
 
 #endif  // CHROME_BROWSER_UI_LAYOUT_CONSTANTS_H_