src/sync/internal_api/public/util/experiments.h

   1 // Copyright (c) 2012 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 #ifndef SYNC_UTIL_EXPERIMENTS_
   6 #define SYNC_UTIL_EXPERIMENTS_
   7
   8 #include <string>
   9
  10 #include "sync/internal_api/public/base/model_type.h"
  11
  12 namespace syncer {
  13
  14 const char kFaviconSyncTag[] = "favicon_sync";
  15 const char kPreCommitUpdateAvoidanceTag[] = "pre_commit_update_avoidance";
  16 const char kGCMChannelTag[] = "gcm_channel";
  17 const char kEnhancedBookmarksTag[] = "enhanced_bookmarks";
  18 const char kGCMInvalidationsTag[] = "gcm_invalidations";
  19
  20 // A structure to hold the enable status of experimental sync features.
  21 struct Experiments {
  22   enum GCMChannelState {
  23     UNSET,
  24     SUPPRESSED,
  25     ENABLED,
  26   };
  27
  28   Experiments()
  29       : favicon_sync_limit(200),
  30         gcm_channel_state(UNSET),
  31         enhanced_bookmarks_enabled(false),
  32         gcm_invalidations_enabled(true)  // By default GCM channel is enabled.
  33   {}
  34
  35   bool Matches(const Experiments& rhs) {
  36     return (favicon_sync_limit == rhs.favicon_sync_limit &&
  37             gcm_channel_state == rhs.gcm_channel_state &&
  38             enhanced_bookmarks_enabled == rhs.enhanced_bookmarks_enabled &&
  39             enhanced_bookmarks_ext_id == rhs.enhanced_bookmarks_ext_id &&
  40             gcm_invalidations_enabled == rhs.gcm_invalidations_enabled);
  41   }
  42
  43   // The number of favicons that a client is permitted to sync.
  44   int favicon_sync_limit;
  45
  46   // Enable state of the GCM channel.
  47   GCMChannelState gcm_channel_state;
  48
  49   // Enable the enhanced bookmarks sync datatype.
  50   bool enhanced_bookmarks_enabled;
  51
  52   // Enable invalidations over GCM channel.
  53   bool gcm_invalidations_enabled;
  54
  55   // Enhanced bookmarks extension id.
  56   std::string enhanced_bookmarks_ext_id;
  57 };
  58
  59 }  // namespace syncer
  60
  61 #endif  // SYNC_UTIL_EXPERIMENTS_