Add content_settings::PolicyProvider and a set of new policies to managed content settings.

chrome/browser/content_settings/content_settings_base_provider.h

 // 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_BASE_PROVIDER_H_
 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_BASE_PROVIDER_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 66 matching lines @@
 
  protected:
   // Returns true if the |content_type| requires a resource identifier.
   bool RequiresResourceIdentifier(
       ContentSettingsType content_type) const;
 
   // Returns true if the passed |settings| object contains only
   // CONTENT_SETTING_DEFAULT values.
   bool AllDefault(const ExtendedContentSettings& settings) const;
 
+  void UpdateContentSettingsMap(
+      const ContentSettingsPattern& requesting_pattern,
+      const ContentSettingsPattern& embedding_pattern,
+      ContentSettingsType content_type,
+      const ResourceIdentifier& resource_identifier,
+      ContentSetting content_setting);
+
   // TODO(markusheintz): LEGACY method. Will be removed in a future re-factoring
   // step.
   ContentSettings GetNonDefaultContentSettings(const GURL& url) const;
 
   // Accessors
   HostContentSettings* host_content_settings() {
     return &host_content_settings_;
   }
 
   HostContentSettings* off_the_record_settings() {
@@ skipping 21 matching lines @@
   HostContentSettings off_the_record_settings_;
 
   // Used around accesses to the content_settings_ object to guarantee
   // thread safety.
   mutable base::Lock lock_;
 };
 
 }  // namespace content_settings
 
 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_BASE_PROVIDER_H_