Adding an Android about:flags feature for offline previews

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 39 matching lines @@
 #include "components/flags_ui/flags_storage.h"
 #include "components/flags_ui/flags_ui_switches.h"
 #include "components/nacl/common/nacl_switches.h"
 #include "components/ntp_snippets/features.h"
 #include "components/ntp_snippets/ntp_snippets_constants.h"
 #include "components/ntp_tiles/switches.h"
 #include "components/offline_pages/core/offline_page_feature.h"
 #include "components/omnibox/browser/omnibox_field_trial.h"
 #include "components/omnibox/browser/omnibox_switches.h"
 #include "components/password_manager/core/common/password_manager_features.h"
+#include "components/previews/core/previews_features.h"
 #include "components/proximity_auth/switches.h"
 #include "components/security_state/core/security_state.h"
 #include "components/security_state/core/switches.h"
 #include "components/signin/core/common/signin_switches.h"
 #include "components/spellcheck/common/spellcheck_features.h"
 #include "components/spellcheck/common/spellcheck_switches.h"
 #include "components/spellcheck/spellcheck_build_features.h"
 #include "components/ssl_config/ssl_config_switches.h"
 #include "components/strings/grit/components_strings.h"
 #include "components/suggestions/features.h"
@@ skipping 1795 matching lines @@
      FEATURE_WITH_PARAMS_VALUE_TYPE(
          data_reduction_proxy::features::kDataReductionMainMenu,
          kDataReductionMainMenuFeatureVariations,
          "DataReductionProxyMainMenu")},
     {"enable-data-reduction-proxy-site-breakdown",
      flag_descriptions::kEnableDataReductionProxySiteBreakdownName,
      flag_descriptions::kEnableDataReductionProxySiteBreakdownDescription,
      kOsAndroid,
      FEATURE_VALUE_TYPE(
          data_reduction_proxy::features::kDataReductionSiteBreakdown)},
+    {"enable-offline-previews", flag_descriptions::kEnableOfflinePreviewsName,
+     flag_descriptions::kEnableOfflinePreviewsDescription, kOsAndroid,
+     FEATURE_VALUE_TYPE(previews::features::kOfflinePreviews)},
 #endif  // OS_ANDROID
     {"allow-insecure-localhost", flag_descriptions::kAllowInsecureLocalhost,
      flag_descriptions::kAllowInsecureLocalhostDescription, kOsAll,
      SINGLE_VALUE_TYPE(switches::kAllowInsecureLocalhost)},
     {"enable-add-to-shelf", flag_descriptions::kAddToShelfName,
      flag_descriptions::kAddToShelfDescription, kOsDesktop,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableAddToShelf,
                                switches::kDisableAddToShelf)},
     {"bypass-app-banner-engagement-checks",
      flag_descriptions::kBypassAppBannerEngagementChecksName,
@@ skipping 1173 matching lines @@
 const base::HistogramBase::Sample kBadSwitchFormatHistogramId = 0;
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags