Cosmetic cleanups in chrome/browser/policy/

chrome/browser/policy/device_policy_cache.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/policy/device_policy_cache.h"
 
+#include <limits>
 #include <string>
+#include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/browser/chromeos/cros/update_library.h"
-#include "chrome/browser/chromeos/cros_settings_names.h"
 #include "chrome/browser/chromeos/login/ownership_service.h"
 #include "chrome/browser/chromeos/user_cros_settings_provider.h"
 #include "chrome/browser/policy/cloud_policy_data_store.h"
 #include "chrome/browser/policy/enterprise_install_attributes.h"
 #include "chrome/browser/policy/enterprise_metrics.h"
 #include "chrome/browser/policy/policy_map.h"
 #include "chrome/browser/policy/proto/device_management_backend.pb.h"
 #include "chrome/browser/policy/proto/device_management_constants.h"
 #include "chrome/browser/policy/proto/device_management_local.pb.h"
 #include "policy/configuration_policy_type.h"
@@ skipping 318 matching lines @@
     mandatory->Set(
         kPolicyChromeOsReleaseChannel, Value::CreateStringValue(channel));
     // TODO(dubroy): Once http://crosbug.com/17015 is implemented, we won't
     // have to pass the channel in here, only ping the update engine to tell
     // it to fetch the channel from the policy.
     chromeos::CrosLibrary::Get()->GetUpdateLibrary()->SetReleaseTrack(channel);
   }
 }
 
 }  // namespace policy