Add a single site view page to view and modify content settings.

chrome/browser/content_settings/host_content_settings_map.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.
 
 // Maps hostnames to custom content settings.  Written on the UI thread and read
 // on any thread.  One instance per profile.
 
 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_H_
 #define CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_H_
 
@@ skipping 129 matching lines @@
   // |resource_identifier|. Setting the value to NULL causes the default value
   // for that type to be used when loading pages matching this pattern.
   //
   // Takes ownership of the passed value.
   void SetWebsiteSetting(const ContentSettingsPattern& primary_pattern,
                          const ContentSettingsPattern& secondary_pattern,
                          ContentSettingsType content_type,
                          const std::string& resource_identifier,
                          base::Value* value);
 
+  // Sets the most specific rule that currently defines the permission for the
+  // given permission type.
+  void SetNarrowestWebsiteSetting(
+      const ContentSettingsPattern& primary_pattern,
+      const ContentSettingsPattern& secondary_pattern,
+      ContentSettingsType content_type,
+      const std::string& resource_identifier,
+      ContentSetting setting,
+      content_settings::SettingInfo existing_info);
+
   // Convenience method to add a content setting for the given URLs, making sure
   // that there is no setting overriding it.
   //
   // This should only be called on the UI thread.
   void AddExceptionForURL(const GURL& primary_url,
                           const GURL& secondary_url,
                           ContentSettingsType content_type,
                           ContentSetting setting);
 
   // Clears all host-specific settings for one content type.
@@ skipping 137 matching lines @@
 
   // Content setting providers. This is only modified at construction
   // time and by RegisterExtensionService, both of which should happen
   // before any other uses of it.
   ProviderMap content_settings_providers_;
 
   DISALLOW_COPY_AND_ASSIGN(HostContentSettingsMap);
 };
 
 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_H_