Convert most of extensions and some other random stuff to using the base namespace for Values.

sync/api/sync_data.cc

Index: sync/api/sync_data.cc
diff --git a/sync/api/sync_data.cc b/sync/api/sync_data.cc
index e95a2df0f86cf757bca380090bc26f5e48ddb845..8df5eae4c373c7effd5bb7b06dd842ac8f479741 100644
--- a/sync/api/sync_data.cc
+++ b/sync/api/sync_data.cc
@@ -121,7 +121,8 @@ std::string SyncData::ToString() const {
 
   std::string type = ModelTypeToString(GetDataType());
   std::string specifics;
-  scoped_ptr<DictionaryValue> value(EntitySpecificsToValue(GetSpecifics()));
+  scoped_ptr<base::DictionaryValue> value(
+      EntitySpecificsToValue(GetSpecifics()));
   base::JSONWriter::WriteWithOptions(value.get(),
                                      base::JSONWriter::OPTIONS_PRETTY_PRINT,
                                      &specifics);