Added flag --extensions-in-action-box to split Action Box and Extensions in it.

chrome/browser/about_flags.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/about_flags.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 342 matching lines @@
     SINGLE_VALUE_TYPE(switches::kEnableExperimentalExtensionApis)
   },
   {
     "action-box",
     IDS_FLAGS_ACTION_BOX_NAME,
     IDS_FLAGS_ACTION_BOX_DESCRIPTION,
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kEnableActionBox),
   },
   {
+    "extensions-in-action-box",
+    IDS_FLAGS_EXTENSIONS_IN_ACTION_BOX_NAME,
+    IDS_FLAGS_EXTENSIONS_IN_ACTION_BOX_DESCRIPTION,
+    kOsAll,
+    SINGLE_VALUE_TYPE(switches::kEnableExtensionsInActionBox),
+  },
+  {
     "script-badges",
     IDS_FLAGS_SCRIPT_BADGES_NAME,
     IDS_FLAGS_SCRIPT_BADGES_DESCRIPTION,
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kEnableScriptBadges),
   },
   {
     "apps-new-install-bubble",
     IDS_FLAGS_APPS_NEW_INSTALL_BUBBLE_NAME,
     IDS_FLAGS_APPS_NEW_INSTALL_BUBBLE_DESCRIPTION,
@@ skipping 954 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags