Continue to clean c_str() calls.

components/prefs/pref_service.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 "components/prefs/pref_service.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 543 matching lines @@
 
   // The pref has no recommended value.
   return NULL;
 }
 
 bool PrefService::Preference::IsManaged() const {
   return pref_value_store()->PrefValueInManagedStore(name_);
 }
 
 bool PrefService::Preference::IsManagedByCustodian() const {
-  return pref_value_store()->PrefValueInSupervisedStore(name_.c_str());
+  return pref_value_store()->PrefValueInSupervisedStore(name_);
 }
 
 bool PrefService::Preference::IsRecommended() const {
   return pref_value_store()->PrefValueFromRecommendedStore(name_);
 }
 
 bool PrefService::Preference::HasExtensionSetting() const {
   return pref_value_store()->PrefValueInExtensionStore(name_);
 }
 
@@ skipping 40 matching lines @@
       DCHECK(found_value->IsType(default_type));
       return found_value;
     } else {
       // Every registered preference has at least a default value.
       NOTREACHED() << "no valid value found for registered pref " << path;
     }
   }
 
   return NULL;
 }