Reland "[Chromecast] Use base::FeatureList to control features."

chromecast/base/pref_names.cc

 // Copyright 2014 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 "chromecast/base/pref_names.h"
 
 namespace chromecast {
 namespace prefs {
 
+// List of experiments enabled by DCS. For metrics purposes only.
+const char kActiveDCSExperiments[] = "experiments.ids";
+
 // Boolean which specifies if remote debugging is enabled
 const char kEnableRemoteDebugging[] = "enable_remote_debugging";
 
 // Boolean that specifies whether or not the client_id has been regenerated
 // due to bug b/9487011.
 const char kMetricsIsNewClientID[] = "user_experience_metrics.is_new_client_id";
 
+// Dictionary of remotely-enabled features from the latest DCS config fetch.
+const char kLatestDCSFeatures[] = "experiments.features";
+
 // Whether or not to report metrics and crashes.
 const char kOptInStats[] = "opt-in.stats";
 
 // Total number of child process crashes (other than renderer / extension
 // renderer ones, and plugin children, which are counted separately) since the
 // last report.
 const char kStabilityChildProcessCrashCount[] =
     "user_experience_metrics.stability.child_process_crash_count";
 
 // Total number of kernel crashes since the last report.
@@ skipping 16 matching lines @@
 // report.
 const char kStabilityRendererHangCount[] =
     "user_experience_metrics.stability.renderer_hang_count";
 
 // Total number of unclean system shutdowns since the last report.
 const char kStabilitySystemUncleanShutdownCount[] =
     "user_experience_metrics.stability.system_unclean_shutdowns";
 
 }  // namespace prefs
 }  // namespace chromecast