Remove enable-iframe-based-signin flag.

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 <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 1272 matching lines @@
      IDS_FLAGS_NEW_PROFILE_MANAGEMENT_DESCRIPTION,
      kOsAndroid | kOsMac | kOsWin | kOsLinux | kOsCrOS,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableNewProfileManagement,
                                switches::kDisableNewProfileManagement)},
     {"enable-account-consistency",
      IDS_FLAGS_ACCOUNT_CONSISTENCY_NAME,
      IDS_FLAGS_ACCOUNT_CONSISTENCY_DESCRIPTION,
      kOsAndroid | kOsMac | kOsWin | kOsLinux | kOsCrOS,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableAccountConsistency,
                                switches::kDisableAccountConsistency)},
-    {"enable-iframe-based-signin",
-     IDS_FLAGS_IFRAME_BASED_SIGNIN_NAME,
-     IDS_FLAGS_IFRAME_BASED_SIGNIN_DESCRIPTION,
-     kOsMac | kOsWin | kOsLinux,
-     SINGLE_VALUE_TYPE(switches::kEnableIframeBasedSignin)},
     {"enable-password-separated-signin-flow",
      IDS_FLAGS_ENABLE_PASSWORD_SEPARATED_SIGNIN_FLOW_NAME,
      IDS_FLAGS_ENABLE_PASSWORD_SEPARATED_SIGNIN_FLOW_DESCRIPTION,
      kOsWin | kOsLinux,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnablePasswordSeparatedSigninFlow,
                                switches::kDisablePasswordSeparatedSigninFlow)},
     {"enable-google-profile-info",
      IDS_FLAGS_GOOGLE_PROFILE_INFO_NAME,
      IDS_FLAGS_GOOGLE_PROFILE_INFO_DESCRIPTION,
      kOsMac | kOsWin | kOsLinux,
@@ skipping 972 matching lines @@
 const base::HistogramBase::Sample kBadSwitchFormatHistogramId = 0;
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags