Delete old policy code after AsyncPolicyLoader refactor.

chrome/browser/policy/file_based_policy_provider.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_FILE_BASED_POLICY_PROVIDER_H_
-#define CHROME_BROWSER_POLICY_FILE_BASED_POLICY_PROVIDER_H_
-#pragma once
-
-#include "base/file_path.h"
-#include "base/time.h"
-#include "chrome/browser/policy/asynchronous_policy_provider.h"
-
-namespace policy {
-
-// File based policy provider that coordinates watching and reloading policy
-// information from the configuration path. Actual logic for loading policy
-// information is handled by a delegate passed at construction time.
-class FileBasedPolicyProvider : public AsynchronousPolicyProvider {
- public:
-
-  // Delegate interface for actual policy loading from the system.
-  class ProviderDelegate : public AsynchronousPolicyProvider::Delegate {
-   public:
-    explicit ProviderDelegate(const FilePath& config_file_path);
-    virtual ~ProviderDelegate();
-
-    // AsynchronousPolicyProvider::Delegate implementation:
-    virtual scoped_ptr<PolicyBundle> Load() = 0;
-
-    // Gets the last modification timestamp for the policy information from the
-    // filesystem. Returns base::Time() if the information is not present, in
-    // which case Load() should return an empty dictionary.
-    virtual base::Time GetLastModification() = 0;
-
-    const FilePath& config_file_path() { return config_file_path_; }
-
-   private:
-    const FilePath config_file_path_;
-
-    DISALLOW_COPY_AND_ASSIGN(ProviderDelegate);
-  };
-
-  // Assumes ownership of |delegate|.
-  FileBasedPolicyProvider(const PolicyDefinitionList* policy_list,
-                          ProviderDelegate* delegate);
-  virtual ~FileBasedPolicyProvider() {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(FileBasedPolicyProvider);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_FILE_BASED_POLICY_PROVIDER_H_