Make net and ipc explicitly use the base namespace for Values.

net/test/spawned_test_server/spawner_communicator.cc

Index: net/test/spawned_test_server/spawner_communicator.cc
diff --git a/net/test/spawned_test_server/spawner_communicator.cc b/net/test/spawned_test_server/spawner_communicator.cc
index 83c56652a17e39b719e76608f50988ce5a225178..f3c29999d7db4efe501e57175ce18a0322a969cb 100644
--- a/net/test/spawned_test_server/spawner_communicator.cc
+++ b/net/test/spawned_test_server/spawner_communicator.cc
@@ -342,7 +342,8 @@ bool SpawnerCommunicator::StartServer(const std::string& arguments,
   }
 
   // Check whether spawner server returns valid data.
-  DictionaryValue* server_data = static_cast<DictionaryValue*>(value.get());
+  base::DictionaryValue* server_data =
+      static_cast<base::DictionaryValue*>(value.get());
   std::string message;
   if (!server_data->GetString("message", &message) || message != "started") {
     LOG(ERROR) << "Invalid message in server data: ";