Converts WindowTreeClientTest to be in terms of aura

services/ui/ws/window_tree_client_unittest.cc

Index: services/ui/ws/window_tree_client_unittest.cc
diff --git a/services/ui/ws/window_tree_client_unittest.cc b/services/ui/ws/window_tree_client_unittest.cc
index 6cdb7ecefaf46a622c4a78fb9c21fec58735fbf9..66c7bfde90759c1eafb491e536989a4050e1891a 100644
--- a/services/ui/ws/window_tree_client_unittest.cc
+++ b/services/ui/ws/window_tree_client_unittest.cc
@@ -15,12 +15,12 @@
 #include "services/service_manager/public/cpp/interface_factory.h"
 #include "services/service_manager/public/cpp/interface_registry.h"
 #include "services/service_manager/public/cpp/service_test.h"
-#include "services/ui/public/cpp/tests/window_server_shelltest_base.h"
 #include "services/ui/public/interfaces/constants.mojom.h"
 #include "services/ui/public/interfaces/window_tree.mojom.h"
 #include "services/ui/public/interfaces/window_tree_host.mojom.h"
 #include "services/ui/ws/ids.h"
 #include "services/ui/ws/test_change_tracker.h"
+#include "services/ui/ws/window_server_service_test_base.h"
 
 using service_manager::Connection;
 using mojo::InterfaceRequest;