[FastTextAutosizer] Enable FastTextAutosizer on tot/dev by default

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 1795 matching lines @@
     IDS_FLAGS_OUT_OF_PROCESS_PDF_DESCRIPTION,
     kOsDesktop,
     SINGLE_VALUE_TYPE(switches::kOutOfProcessPdf)
   },
 #if defined(OS_ANDROID)
   {
     "enable-fast-text-autosizing",
     IDS_FLAGS_ENABLE_FAST_TEXT_AUTOSIZING_NAME,
     IDS_FLAGS_ENABLE_FAST_TEXT_AUTOSIZING_DESCRIPTION,
     kOsAndroid,
-    SINGLE_VALUE_TYPE(switches::kEnableFastTextAutosizing)
+    ENABLE_DISABLE_VALUE_TYPE(switches::kEnableFastTextAutosizing,
+                              switches::kDisableFastTextAutosizing)
   },
   {
     "disable-cast",
     IDS_FLAGS_DISABLE_CAST_NAME,
     IDS_FLAGS_DISABLE_CAST_DESCRIPTION,
     kOsAndroid,
     SINGLE_VALUE_TYPE(switches::kDisableCast)
   },
 #endif
   {
@@ skipping 550 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags