Move DefaultActivationClient to wm/core

ui/wm/core/input_method_event_filter_unittest.cc

Index: ui/wm/core/input_method_event_filter_unittest.cc
diff --git a/ui/wm/core/input_method_event_filter_unittest.cc b/ui/wm/core/input_method_event_filter_unittest.cc
index 6fc1b393fb5329b08cfb1c71f07bc833376c11d1..c5daa677ff726f319b6c74f616e7c475fb300f10 100644
--- a/ui/wm/core/input_method_event_filter_unittest.cc
+++ b/ui/wm/core/input_method_event_filter_unittest.cc
@@ -12,6 +12,7 @@
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/events/test/test_event_handler.h"
 #include "ui/wm/core/compound_event_filter.h"
+#include "ui/wm/core/default_activation_client.h"
 #include "ui/wm/public/activation_client.h"
 
 #if !defined(OS_WIN) && !defined(USE_X11)
@@ -46,6 +47,8 @@ TEST_F(InputMethodEventFilterTest, TestInputMethodProperty) {
 // Tests if InputMethodEventFilter dispatches a ui::ET_TRANSLATED_KEY_* event to
 // the root window.
 TEST_F(InputMethodEventFilterTest, TestInputMethodKeyEventPropagation) {
+  new wm::DefaultActivationClient(root_window());
+
   CompoundEventFilter root_filter;
   root_window()->AddPreTargetHandler(&root_filter);