chrome/browser/bookmarks/enhanced_bookmarks_features.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/bookmarks/enhanced_bookmarks_features.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/prefs/pref_service.h"
   9 #include "base/prefs/scoped_user_pref_update.h"
  10 #include "base/sha1.h"
  11 #include "base/strings/string_number_conversions.h"
  12 #include "chrome/common/chrome_switches.h"
  13 #include "chrome/common/pref_names.h"
  14 #include "components/variations/variations_associated_data.h"
  15 #include "extensions/common/features/feature.h"
  16 #include "extensions/common/features/feature_provider.h"
  17
  18 namespace {
  19
  20 const char kFieldTrialName[] = "EnhancedBookmarks";
  21
  22 };  // namespace
  23
  24 void UpdateBookmarksExperiment(
  25     PrefService* local_state,
  26     BookmarksExperimentState bookmarks_experiment_state) {
  27   ListPrefUpdate update(local_state, prefs::kEnabledLabsExperiments);
  28   base::ListValue* experiments_list = update.Get();
  29   size_t index;
  30   if (bookmarks_experiment_state == kNoBookmarksExperiment) {
  31     experiments_list->Remove(
  32         base::StringValue(switches::kManualEnhancedBookmarks), &index);
  33     experiments_list->Remove(
  34         base::StringValue(switches::kManualEnhancedBookmarksOptout), &index);
  35   } else if (bookmarks_experiment_state == kBookmarksExperimentEnabled) {
  36     experiments_list->Remove(
  37         base::StringValue(switches::kManualEnhancedBookmarksOptout), &index);
  38     experiments_list->AppendIfNotPresent(
  39         new base::StringValue(switches::kManualEnhancedBookmarks));
  40   } else if (bookmarks_experiment_state ==
  41                  kBookmarksExperimentEnabledUserOptOut) {
  42     experiments_list->Remove(
  43         base::StringValue(switches::kManualEnhancedBookmarks), &index);
  44     experiments_list->AppendIfNotPresent(
  45         new base::StringValue(switches::kManualEnhancedBookmarksOptout));
  46   }
  47 }
  48
  49 bool IsEnhancedBookmarksExperimentEnabled() {
  50   CommandLine* command_line = CommandLine::ForCurrentProcess();
  51   if (command_line->HasSwitch(switches::kManualEnhancedBookmarks) ||
  52       command_line->HasSwitch(switches::kManualEnhancedBookmarksOptout)) {
  53     return true;
  54   }
  55
  56   std::string ext_id = GetEnhancedBookmarksExtensionIdFromFinch();
  57   extensions::FeatureProvider* feature_provider =
  58       extensions::FeatureProvider::GetPermissionFeatures();
  59   extensions::Feature* feature = feature_provider->GetFeature("metricsPrivate");
  60   return feature && feature->IsIdInWhitelist(ext_id);
  61 }
  62
  63 bool IsEnableDomDistillerSet() {
  64   if (CommandLine::ForCurrentProcess()->
  65       HasSwitch(switches::kEnableDomDistiller)) {
  66     return true;
  67   }
  68   if (chrome_variations::GetVariationParamValue(
  69           kFieldTrialName, "enable-dom-distiller") == "1")
  70     return true;
  71
  72   return false;
  73 }
  74
  75 bool IsEnableSyncArticlesSet() {
  76   if (CommandLine::ForCurrentProcess()->
  77       HasSwitch(switches::kEnableSyncArticles)) {
  78     return true;
  79   }
  80   if (chrome_variations::GetVariationParamValue(
  81           kFieldTrialName, "enable-sync-articles") == "1")
  82     return true;
  83
  84   return false;
  85 }
  86
  87 std::string GetEnhancedBookmarksExtensionIdFromFinch() {
  88   return chrome_variations::GetVariationParamValue(kFieldTrialName, "id");
  89 }