Add base namespace to more values in sync and elsewhere.

sync/internal_api/public/sessions/sync_source_info.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/internal_api/public/sessions/sync_source_info.h"
 
 #include "base/values.h"
 #include "sync/protocol/proto_enum_conversions.h"
 
 namespace syncer {
 namespace sessions {
 
 SyncSourceInfo::SyncSourceInfo()
     : updates_source(sync_pb::GetUpdatesCallerInfo::UNKNOWN) {}
 
 SyncSourceInfo::SyncSourceInfo(const ModelTypeInvalidationMap& t)
     : updates_source(sync_pb::GetUpdatesCallerInfo::UNKNOWN), types(t) {}
 
 SyncSourceInfo::SyncSourceInfo(
     const sync_pb::GetUpdatesCallerInfo::GetUpdatesSource& u,
     const ModelTypeInvalidationMap& t)
     : updates_source(u), types(t) {}
 
 SyncSourceInfo::~SyncSourceInfo() {}
 
-DictionaryValue* SyncSourceInfo::ToValue() const {
-  DictionaryValue* value = new DictionaryValue();
+base::DictionaryValue* SyncSourceInfo::ToValue() const {
+  base::DictionaryValue* value = new base::DictionaryValue();
   value->SetString("updatesSource",
                    GetUpdatesSourceString(updates_source));
   value->Set("types", ModelTypeInvalidationMapToValue(types));
   return value;
 }
 
 }  // namespace sessions
 }  // namespace syncer