Add a method to the content_settings::ProviderInterface to return the content settings Value.

chrome/browser/content_settings/content_settings_pref_provider.h

Index: chrome/browser/content_settings/content_settings_pref_provider.h
diff --git a/chrome/browser/content_settings/content_settings_pref_provider.h b/chrome/browser/content_settings/content_settings_pref_provider.h
index 13895f59ce3bed8a7a0c950aa13e2f7c539c3b68..65923f881d23a3559b5e86aca1f6d160adfc15ea 100644
--- a/chrome/browser/content_settings/content_settings_pref_provider.h
+++ b/chrome/browser/content_settings/content_settings_pref_provider.h
@@ -118,6 +118,12 @@ class PrefProvider : public ObservableProvider,
       ContentSettingsType content_type,
       const ResourceIdentifier& resource_identifier) const;
 
+  virtual Value* GetContentSettingValue(
+      const GURL& primary_url,
+      const GURL& secondary_url,
+      ContentSettingsType content_type,
+      const ResourceIdentifier& resource_identifier) const;
+
   virtual void GetAllContentSettingsRules(
       ContentSettingsType content_type,
       const ResourceIdentifier& resource_identifier,