Add data reduction functionality to all platforms.

chrome/common/variations/uniformity_field_trials.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 "chrome/common/variations/uniformity_field_trials.h"
 
 #include <string>
 
 #include "base/metrics/field_trial.h"
 #include "base/strings/stringprintf.h"
 #include "base/time/time.h"
+#include "chrome/common/chrome_version_info.h"

[bengr, 2014/07/17 00:11:08]

Why is this needed?

[Not at Google. Contact bengr, 2014/07/17 18:10:21]

Done.

 #include "chrome/common/variations/variation_ids.h"
 #include "components/variations/variations_associated_data.h"
 
 namespace chrome_variations {
 
 namespace {
 
 // Set up a uniformity field trial. |one_time_randomized| indicates if the
 // field trial is one-time randomized or session-randomized. |trial_name_string|
 // must contain a "%d" since the percentage of the group will be inserted in
@@ skipping 102 matching lines @@
   const std::string kSessionRandomizedTrialName =
       "UMA-Session-Randomized-Uniformity-Trial-%d-Percent";
   SetupSingleUniformityFieldTrial(
       base::FieldTrial::SESSION_RANDOMIZED, kSessionRandomizedTrialName,
       UNIFORMITY_SESSION_RANDOMIZED_5_PERCENT_BASE, 20);
 
   SetupNewInstallUniformityTrial(install_date);
 }
 
 }  // namespace chrome_variations