Restoring the chrome variatioons client, with a fix for browser_test failures caused by it.

chrome/common/pref_names.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/common/pref_names.h"
 
 #include "base/basictypes.h"
 
 namespace prefs {
 
@@ skipping 1007 matching lines @@
 
 // Array of strings that are each UMA logs that were not sent because the
 // browser terminated before these accumulated metrics could be sent.  These
 // logs typically include histograms and memory reports, as well as ongoing
 // user activities.  Currently we store both XML and protobuf versions.
 const char kMetricsOngoingLogsXml[] =
     "user_experience_metrics.ongoing_logs";
 const char kMetricsOngoingLogsProto[] =
     "user_experience_metrics.ongoing_logs_as_protobufs";
 
+// String serialized form of variations seed protobuf.
+const char kVariationsSeed[] = "variations_seed";
+
 // Where profile specific metrics are placed.
 const char kProfileMetrics[] = "user_experience_metrics.profiles";
 
 // The metrics for a profile are stored as dictionary values under the
 // path kProfileMetrics. The individual metrics are placed under the path
 // kProfileMetrics.kProfilePrefix<hashed-profile-id>.
 const char kProfilePrefix[] = "profile-";
 
 // True if the previous run of the program exited cleanly.
 const char kStabilityExitedCleanly[] =
@@ skipping 830 matching lines @@
 const char kInManagedMode[] = "managed_mode";
 
 // Counts how many more times the 'profile on a network share' warning should be
 // shown to the user before the next silence period.
 const char kNetworkProfileWarningsLeft[] = "network_profile.warnings_left";
 // Tracks the time of the last shown warning. Used to reset
 // |network_profile.warnings_left| after a silence period.
 const char kNetworkProfileLastWarningTime[] =
     "network_profile.last_warning_time";
 }  // namespace prefs