Add base namespace to more values in sync and elsewhere.

sync/notifier/p2p_invalidator.cc

Index: sync/notifier/p2p_invalidator.cc
diff --git a/sync/notifier/p2p_invalidator.cc b/sync/notifier/p2p_invalidator.cc
index 78257575d8834f443d3947dda07ccf0d2cc541a9..8b54c0417ee8f5f466f309d412d918c11b6e917f 100644
--- a/sync/notifier/p2p_invalidator.cc
+++ b/sync/notifier/p2p_invalidator.cc
@@ -100,7 +100,7 @@ bool P2PNotificationData::Equals(const P2PNotificationData& other) const {
 }
 
 std::string P2PNotificationData::ToString() const {
-  scoped_ptr<DictionaryValue> dict(new DictionaryValue());
+  scoped_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
   dict->SetString(kSenderIdKey, sender_id_);
   dict->SetString(kNotificationTypeKey,
                   P2PNotificationTargetToString(target_));
@@ -112,7 +112,7 @@ std::string P2PNotificationData::ToString() const {
 }
 
 bool P2PNotificationData::ResetFromString(const std::string& str) {
-  scoped_ptr<Value> data_value(base::JSONReader::Read(str));
+  scoped_ptr<base::Value> data_value(base::JSONReader::Read(str));
   const base::DictionaryValue* data_dict = NULL;
   if (!data_value.get() || !data_value->GetAsDictionary(&data_dict)) {
     LOG(WARNING) << "Could not parse " << str << " as a dictionary";