Remove old cloud policy code.

chrome/browser/policy/user_policy_token_cache.h

-// 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.
-
-#ifndef CHROME_BROWSER_POLICY_USER_POLICY_TOKEN_CACHE_H_
-#define CHROME_BROWSER_POLICY_USER_POLICY_TOKEN_CACHE_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/file_path.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/policy/cloud_policy_data_store.h"
-
-namespace policy {
-
-// Handles disk access and threading details for loading and storing tokens.
-class UserPolicyTokenLoader
-    : public base::RefCountedThreadSafe<UserPolicyTokenLoader> {
- public:
-  // Callback interface for reporting a successfull load.
-  class Delegate {
-   public:
-    virtual ~Delegate();
-    virtual void OnTokenLoaded(const std::string& token,
-                               const std::string& device_id) = 0;
-  };
-
-  UserPolicyTokenLoader(const base::WeakPtr<Delegate>& delegate,
-                        const FilePath& cache_file);
-
-  // Starts loading the disk cache. After the load is finished, the result is
-  // reported through the delegate.
-  void Load();
-
-  // Stores credentials asynchronously to disk.
-  void Store(const std::string& token, const std::string& device_id);
-
- private:
-  friend class base::RefCountedThreadSafe<UserPolicyTokenLoader>;
-  ~UserPolicyTokenLoader();
-
-  void LoadOnFileThread();
-  void NotifyOnUIThread(const std::string& token,
-                        const std::string& device_id);
-  void StoreOnFileThread(const std::string& token,
-                         const std::string& device_id);
-
-  const base::WeakPtr<Delegate> delegate_;
-  const FilePath cache_file_;
-
-  DISALLOW_COPY_AND_ASSIGN(UserPolicyTokenLoader);
-};
-
-// Responsible for managing the on-disk token cache.
-class UserPolicyTokenCache : public CloudPolicyDataStore::Observer,
-                             public UserPolicyTokenLoader::Delegate {
- public:
-  UserPolicyTokenCache(CloudPolicyDataStore* data_store,
-                       const FilePath& cache_file);
-  virtual ~UserPolicyTokenCache();
-
-  // Starts loading the disk cache and installs the token in the data store.
-  void Load();
-
-  // UserPolicyTokenLoader::Delegate implementation:
-  virtual void OnTokenLoaded(const std::string& token,
-                             const std::string& device_id) OVERRIDE;
-
-  // CloudPolicyDataStore::Observer implementation:
-  virtual void OnDeviceTokenChanged() OVERRIDE;
-  virtual void OnCredentialsChanged() OVERRIDE;
-
- private:
-  base::WeakPtrFactory<UserPolicyTokenLoader::Delegate> weak_ptr_factory_;
-
-  CloudPolicyDataStore* data_store_;
-  scoped_refptr<UserPolicyTokenLoader> loader_;
-
-  // The current token in the cache. Upon new token notifications, we compare
-  // against this in order to avoid writing the file when there's no change.
-  std::string token_;
-
-  DISALLOW_COPY_AND_ASSIGN(UserPolicyTokenCache);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_USER_POLICY_TOKEN_CACHE_H_