Allow extensions on chrome:// URLs, when flag is set and permission is explicitly requested

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 455 matching lines @@
     SINGLE_VALUE_TYPE(switches::kEnablePnacl)
   },
   {
     "extension-apis",  // FLAGS:RECORD_UMA
     IDS_FLAGS_EXPERIMENTAL_EXTENSION_APIS_NAME,
     IDS_FLAGS_EXPERIMENTAL_EXTENSION_APIS_DESCRIPTION,
     kOsDesktop,
     SINGLE_VALUE_TYPE(switches::kEnableExperimentalExtensionApis)
   },
   {
+    "extensions-on-chrome-urls",
+    IDS_FLAGS_EXTENSIONS_ON_CHROME_URLS_NAME,
+    IDS_FLAGS_EXTENSIONS_ON_CHROME_URLS_DESCRIPTION,
+    kOsAll,
+    SINGLE_VALUE_TYPE(switches::kExtensionsOnChromeURLs)
+  },
+  {
     "action-box",
     IDS_FLAGS_ACTION_BOX_NAME,
     IDS_FLAGS_ACTION_BOX_DESCRIPTION,
     kOsDesktop,
     ENABLE_DISABLE_VALUE_TYPE_AND_VALUE(switches::kActionBox, "1",
                                         switches::kActionBox, "0")
   },
   {
     "script-badges",
     IDS_FLAGS_SCRIPT_BADGES_NAME,
@@ skipping 1286 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags