1 files changed, 2 insertions, 0 deletions
diff --git a/ui/wm/test/wm_test_helper.h b/ui/wm/test/wm_test_helper.h
index 52707a4..1a3dd09 100644
--- a/ui/wm/test/wm_test_helper.h
+++ b/ui/wm/test/wm_test_helper.h
@@ -14,6 +14,7 @@ namespace aura {
 class Window;
 class WindowTreeHost;
 namespace client {
+class DefaultActivationClient;
 class DefaultCaptureClient;
 class FocusClient;
 }
@@ -50,6 +51,7 @@ class WMTestHelper : public aura::client::WindowTreeClient {
   scoped_ptr<wm::CompoundEventFilter> root_window_event_filter_;
   scoped_ptr<aura::client::DefaultCaptureClient> capture_client_;
   scoped_ptr<wm::InputMethodEventFilter> input_method_filter_;
+  scoped_ptr<aura::client::DefaultActivationClient> activation_client_;
   scoped_ptr<aura::client::FocusClient> focus_client_;
 
   DISALLOW_COPY_AND_ASSIGN(WMTestHelper);