[Policy Experimental] Add "recommended" policies for URL exceptions.

components/prefs/pref_value_store.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 COMPONENTS_PREFS_PREF_VALUE_STORE_H_
 #define COMPONENTS_PREFS_PREF_VALUE_STORE_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 63 matching lines @@
 
   // Gets the value for the given preference name that has the specified value
   // type. Values stored in a PrefStore that have the matching |name| but
   // a non-matching |type| are silently skipped. Returns true if a valid value
   // was found in any of the available PrefStores. Most callers should use
   // Preference::GetValue() instead of calling this method directly.
   bool GetValue(const std::string& name,
                 base::Value::Type type,
                 const base::Value** out_value) const;
 
+  // Gets the managed value for the given preference name that has the
+  // specified value type. A value stored in the managed PrefStore that has
+  // the matching |name| but a non-matching |type| is silently ignored. Returns
+  // true if a valid value was found. Most callers should use
+  // Preference::GetManagedValue() instead of calling this method directly.
+  bool GetManagedValue(const std::string& name,
+                       base::Value::Type type,
+                       const base::Value** out_value) const;
+
   // Gets the recommended value for the given preference name that has the
   // specified value type. A value stored in the recommended PrefStore that has
   // the matching |name| but a non-matching |type| is silently ignored. Returns
   // true if a valid value was found. Most callers should use
   // Preference::GetRecommendedValue() instead of calling this method directly.
   bool GetRecommendedValue(const std::string& name,
                            base::Value::Type type,
                            const base::Value** out_value) const;
 
   // These methods return true if a preference with the given name is in the
@@ skipping 157 matching lines @@
   // A mapping of preference names to their registered types.
   PrefTypeMap pref_types_;
 
   // True if not all of the PrefStores were initialized successfully.
   bool initialization_failed_;
 
   DISALLOW_COPY_AND_ASSIGN(PrefValueStore);
 };
 
 #endif  // COMPONENTS_PREFS_PREF_VALUE_STORE_H_