Revert 289312 "Move StringToUpperASCII and LowerCaseEqualsASCII ..."

trunk/src/chrome/browser/auto_launch_trial.cc

 // Copyright (c) 2011 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/browser/auto_launch_trial.h"
 
 #include "base/files/file_path.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/installer/util/master_preferences.h"
 #include "chrome/installer/util/master_preferences_constants.h"
 
 const char kAutoLaunchTrialName[] = "AutoLaunchExperiment";
 const char kAutoLaunchTrialAutoLaunchGroup[] = "AutoLaunching";
 const char kAutoLaunchTrialControlGroup[] = "NotAutoLaunching";
 
 namespace auto_launch_trial {
 
 bool IsInAutoLaunchGroup() {
   return base::FieldTrialList::TrialExists(kAutoLaunchTrialName) &&
          base::FieldTrialList::Find(kAutoLaunchTrialName)->group_name()
              == kAutoLaunchTrialAutoLaunchGroup;
 }
 
 bool IsInExperimentGroup(const std::string& brand_code) {
-  return base::LowerCaseEqualsASCII(brand_code, "rngp");
+  return LowerCaseEqualsASCII(brand_code, "rngp");
 }
 
 bool IsInControlGroup(const std::string& brand_code) {
-  return base::LowerCaseEqualsASCII(brand_code, "rngq");
+  return LowerCaseEqualsASCII(brand_code, "rngq");
 }
 
 }  // namespace auto_launch_trial