Make base use the proper Value namespace

base/prefs/pref_value_store.h

Index: base/prefs/pref_value_store.h
diff --git a/base/prefs/pref_value_store.h b/base/prefs/pref_value_store.h
index 3006b6e6b975f71115f1621dee311484411781fc..4036e40ac87b99d0b44e59456bae556e0824014f 100644
--- a/base/prefs/pref_value_store.h
+++ b/base/prefs/pref_value_store.h
@@ -75,7 +75,7 @@ class BASE_PREFS_EXPORT PrefValueStore {
   // Preference::GetValue() instead of calling this method directly.
   bool GetValue(const std::string& name,
                 base::Value::Type type,
-                const Value** out_value) const;
+                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
@@ -84,7 +84,7 @@ class BASE_PREFS_EXPORT PrefValueStore {
   // Preference::GetRecommendedValue() instead of calling this method directly.
   bool GetRecommendedValue(const std::string& name,
                            base::Value::Type type,
-                           const Value** out_value) const;
+                           const base::Value** out_value) const;
 
   // These methods return true if a preference with the given name is in the
   // indicated pref store, even if that value is currently being overridden by
@@ -201,13 +201,13 @@ class BASE_PREFS_EXPORT PrefValueStore {
   // Get a value from the specified |store|.
   bool GetValueFromStore(const char* name,
                          PrefStoreType store,
-                         const Value** out_value) const;
+                         const base::Value** out_value) const;
 
   // Get a value from the specified |store| if its |type| matches.
   bool GetValueFromStoreWithType(const char* name,
                                  base::Value::Type type,
                                  PrefStoreType store,
-                                 const Value** out_value) const;
+                                 const base::Value** out_value) const;
 
   // Called upon changes in individual pref stores in order to determine whether
   // the user-visible pref value has changed. Triggers the change notification