Add support for variations controlled overriding UI strings to the variations service.

components/variations/processed_study.cc

 // Copyright 2013 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 "components/variations/processed_study.h"
 
 #include <set>
 
 #include "base/version.h"
 #include "components/variations/proto/study.pb.h"
@@ skipping 73 matching lines @@
   base::FieldTrial::Probability total_probability = 0;
   if (!ValidateStudyAndComputeTotalProbability(*study, &total_probability))
     return false;
 
   study_ = study;
   is_expired_ = is_expired;
   total_probability_ = total_probability;
   return true;
 }
 
+int ProcessedStudy::GetExperimentIndexByName(
+    const std::string& name) const {
+  for (int i = 0; i < study_->experiment_size(); ++i) {
+    if (study_->experiment(i).name() == name) {

[Alexei Svitkine (slow), 2014/07/03 17:54:40]

Nit: No need for {}'s.

[jwd, 2014/07/07 15:52:20]

Done.

+      return i;
+    }
+  }
+
+  return -1;
+}
+
 // static
 bool ProcessedStudy::ValidateAndAppendStudy(
     const Study* study,
     bool is_expired,
     std::vector<ProcessedStudy>* processed_studies) {
   ProcessedStudy processed_study;
   if (processed_study.Init(study, is_expired)) {
     processed_studies->push_back(processed_study);
     return true;
   }
   return false;
 }
 
 }  // namespace chrome_variations