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

sync/syncable/nigori_util.cc

Index: sync/syncable/nigori_util.cc
diff --git a/sync/syncable/nigori_util.cc b/sync/syncable/nigori_util.cc
index 3e456dd1f5e2d1aa56b6bc8cd73e4185cd54d785..3da79172bc31eae9f325f4797a43b2335f42f3f0 100644
--- a/sync/syncable/nigori_util.cc
+++ b/sync/syncable/nigori_util.cc
@@ -172,7 +172,7 @@ bool UpdateEntryWithEncryption(
   } else {
     // Encrypt new_specifics into generated_specifics.
     if (VLOG_IS_ON(2)) {
-      scoped_ptr<DictionaryValue> value(entry->ToValue(NULL));
+      scoped_ptr<base::DictionaryValue> value(entry->ToValue(NULL));
       std::string info;
       base::JSONWriter::WriteWithOptions(value.get(),
                                          base::JSONWriter::OPTIONS_PRETTY_PRINT,