Move policy code into components/policy.

chrome/browser/policy/policy_load_status.h

-// Copyright (c) 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.
-
-#ifndef CHROME_BROWSER_POLICY_POLICY_LOAD_STATUS_H_
-#define CHROME_BROWSER_POLICY_POLICY_LOAD_STATUS_H_
-
-#include <bitset>
-
-#include "base/basictypes.h"
-
-namespace base {
-class HistogramBase;
-}
-
-namespace policy {
-
-// UMA histogram enum for policy load status. Don't change existing constants,
-// append additional constants to the end if needed.
-enum PolicyLoadStatus {
-  // Policy load attempt started. This gets logged for each policy load attempt
-  // to get a baseline on the number of requests, and an arbitrary number of
-  // the below status codes may get added in addition.
-  POLICY_LOAD_STATUS_STARTED,
-  // System failed to determine whether there's policy.
-  POLICY_LOAD_STATUS_QUERY_FAILED,
-  // No policy present.
-  POLICY_LOAD_STATUS_NO_POLICY,
-  // Data inaccessible, such as non-local policy file.
-  POLICY_LOAD_STATUS_INACCCESSIBLE,
-  // Data missing, such as policy file not present.
-  POLICY_LOAD_STATUS_MISSING,
-  // Trying with Wow64 redirection disabled.
-  POLICY_LOAD_STATUS_WOW64_REDIRECTION_DISABLED,
-  // Data read error, for example file reading errors.
-  POLICY_LOAD_STATUS_READ_ERROR,
-  // Data too large to process.
-  POLICY_LOAD_STATUS_TOO_BIG,
-  // Parse error.
-  POLICY_LOAD_STATUS_PARSE_ERROR,
-
-  // This must stay last.
-  POLICY_LOAD_STATUS_SIZE
-};
-
-// A helper for generating policy load status UMA statistics that'll collect
-// histogram samples for a policy load operation and records histogram samples
-// for the status codes that were seen on destruction.
-class PolicyLoadStatusSample {
- public:
-  PolicyLoadStatusSample();
-  ~PolicyLoadStatusSample();
-
-  // Adds a status code.
-  void Add(PolicyLoadStatus status);
-
- private:
-  std::bitset<POLICY_LOAD_STATUS_SIZE> status_bits_;
-  base::HistogramBase* histogram_;
-
-  DISALLOW_COPY_AND_ASSIGN(PolicyLoadStatusSample);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_POLICY_LOAD_STATUS_H_