Implement Action Box button

chrome/browser/ui/views/location_bar/location_bar_view.h

Index: chrome/browser/ui/views/location_bar/location_bar_view.h
===================================================================
--- chrome/browser/ui/views/location_bar/location_bar_view.h	(revision 137914)
+++ chrome/browser/ui/views/location_bar/location_bar_view.h	(working copy)
@@ -30,6 +30,7 @@
 #include "chrome/browser/ui/views/omnibox/omnibox_view_win.h"
 #endif
 
+class ActionBoxButtonView;
 class ChromeToMobileView;
 class CommandUpdater;
 class ContentSettingBubbleModelDelegate;
@@ -455,6 +456,9 @@
   // The star.
   StarView* star_view_;
 
+  // The action box button (plus).
+  ActionBoxButtonView* action_box_button_view_;
+
   // The Chrome To Mobile page action icon view.
   ChromeToMobileView* chrome_to_mobile_view_;