Add base namespace to more values in sync and elsewhere.

sync/engine/traffic_logger.cc

Index: sync/engine/traffic_logger.cc
diff --git a/sync/engine/traffic_logger.cc b/sync/engine/traffic_logger.cc
index 740409aac256be07eeed7d9f5e494bc1902d9cd0..13b1c647981f34824fbaec74f47e05e868f0604e 100644
--- a/sync/engine/traffic_logger.cc
+++ b/sync/engine/traffic_logger.cc
@@ -18,10 +18,10 @@ namespace syncer {
 namespace {
 template <class T>
 void LogData(const T& data,
-             DictionaryValue* (*to_dictionary_value)(const T&, bool),
+             base::DictionaryValue* (*to_dictionary_value)(const T&, bool),
              const std::string& description) {
   if (::logging::DEBUG_MODE && VLOG_IS_ON(1)) {
-    scoped_ptr<DictionaryValue> value(
+    scoped_ptr<base::DictionaryValue> value(
         (*to_dictionary_value)(data, true /* include_specifics */));
     std::string message;
     base::JSONWriter::WriteWithOptions(value.get(),