Added flag for alternate launcher settings (remaining changes to come).

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 888 matching lines @@
   {
     "enable-tab-capture",
     IDS_ENABLE_TAB_CAPTURE_NAME,
     IDS_ENABLE_TAB_CAPTURE_DESCRIPTION,
     kOsWin | kOsMac | kOsLinux | kOsCrOS,
     ENABLE_DISABLE_VALUE_TYPE_AND_VALUE(switches::kTabCapture, "1",
                                         switches::kTabCapture, "0")
   },
 #if defined(OS_CHROMEOS)
   {
+      "ash-use-alt-shelf",
+      IDS_FLAGS_ALTERNATE_SHELF_LAYOUT_NAME,
+      IDS_FLAGS_ALTERNATE_SHELF_LAYOUT_DESCRIPTION,
+      kOsCrOS,
+      SINGLE_VALUE_TYPE(ash::switches::kAshUseAlternateShelfLayout)
+  },
+  {
     "enable-background-loader",
     IDS_ENABLE_BACKLOADER_NAME,
     IDS_ENABLE_BACKLOADER_DESCRIPTION,
     kOsCrOS,
     SINGLE_VALUE_TYPE(chromeos::switches::kEnableBackgroundLoader)
   },
   {
     "enable-bezel-touch",
     IDS_ENABLE_BEZEL_TOUCH_NAME,
     IDS_ENABLE_BEZEL_TOUCH_DESCRIPTION,
@@ skipping 1096 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags