[Webapps] Add switch to about:flags

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 1618 matching lines @@
     kOsAll,
     MULTI_VALUE_TYPE(kMapImageChoices)
   },
   {
     "enable-device-motion",
     IDS_FLAGS_ENABLE_DEVICE_MOTION_NAME,
     IDS_FLAGS_ENABLE_DEVICE_MOTION_DESCRIPTION,
     kOsDesktop,
     SINGLE_VALUE_TYPE(switches::kEnableDeviceMotion)
   },
+  {
+    "enable-add-to-homescreen",
+    IDS_FLAGS_ENABLE_ADD_TO_HOMESCREEN_NAME,
+    IDS_FLAGS_ENABLE_ADD_TO_HOMESCREEN_DESCRIPTION,
+    kOsAndroid,
+#if defined(OS_ANDROID)
+    SINGLE_VALUE_TYPE(switches::kEnableAddToHomescreen)
+#else
+    SINGLE_VALUE_TYPE("")
+#endif
+  },
 };
 
 const Experiment* experiments = kExperiments;
 size_t num_experiments = arraysize(kExperiments);
 
 // Stores and encapsulates the little state that about:flags has.
 class FlagsState {
  public:
   FlagsState() : needs_restart_(false) {}
   void ConvertFlagsToSwitches(FlagsStorage* flags_storage,
@@ skipping 472 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags