Componentize HostContentSettingsMap and content settings providers.

chrome/browser/content_settings/content_settings_policy_provider.h

Index: chrome/browser/content_settings/content_settings_policy_provider.h
diff --git a/chrome/browser/content_settings/content_settings_policy_provider.h b/chrome/browser/content_settings/content_settings_policy_provider.h
deleted file mode 100644
index e59c91b0d9ad438cacff710311930eefe845f80d..0000000000000000000000000000000000000000
--- a/chrome/browser/content_settings/content_settings_policy_provider.h
+++ /dev/null
@@ -1,82 +0,0 @@
-// 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.
-
-#ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_POLICY_PROVIDER_H_
-#define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_POLICY_PROVIDER_H_
-
-// A content settings provider that takes its settings out of policies.
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/prefs/pref_change_registrar.h"
-#include "base/synchronization/lock.h"
-#include "components/content_settings/core/browser/content_settings_observable_provider.h"
-#include "components/content_settings/core/browser/content_settings_origin_identifier_value_map.h"
-
-class PrefService;
-
-namespace user_prefs {
-class PrefRegistrySyncable;
-}
-
-namespace content_settings {
-
-// PolicyProvider that provides managed content-settings.
-class PolicyProvider : public ObservableProvider {
- public:
-  explicit PolicyProvider(PrefService* prefs);
-  ~PolicyProvider() override;
-  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
-
-  // ProviderInterface implementations.
-  RuleIterator* GetRuleIterator(ContentSettingsType content_type,
-                                const ResourceIdentifier& resource_identifier,
-                                bool incognito) const override;
-
-  bool SetWebsiteSetting(const ContentSettingsPattern& primary_pattern,
-                         const ContentSettingsPattern& secondary_pattern,
-                         ContentSettingsType content_type,
-                         const ResourceIdentifier& resource_identifier,
-                         base::Value* value) override;
-
-  void ClearAllContentSettingsRules(ContentSettingsType content_type) override;
-
-  void ShutdownOnUIThread() override;
-
- private:
-  // Reads the policy managed default settings.
-  void ReadManagedDefaultSettings();
-
-  // Callback for preference changes.
-  void OnPreferenceChanged(const std::string& pref_name);
-
-  // Reads the policy controlled default settings for a specific content type.
-  void UpdateManagedDefaultSetting(ContentSettingsType content_type);
-
-  void ReadManagedContentSettings(bool overwrite);
-
-  void GetContentSettingsFromPreferences(OriginIdentifierValueMap* rules);
-
-  void GetAutoSelectCertificateSettingsFromPreferences(
-      OriginIdentifierValueMap* value_map);
-
-  void ReadManagedContentSettingsTypes(ContentSettingsType content_type);
-
-  OriginIdentifierValueMap value_map_;
-
-  PrefService* prefs_;
-
-  PrefChangeRegistrar pref_change_registrar_;
-
-  // Used around accesses to the |value_map_| object to guarantee
-  // thread safety.
-  mutable base::Lock lock_;
-
-  DISALLOW_COPY_AND_ASSIGN(PolicyProvider);
-};
-
-}  // namespace content_settings
-
-#endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_POLICY_PROVIDER_H_