Use EventHandler for IME

ash/accelerators/accelerator_controller_unittest.cc

Index: ash/accelerators/accelerator_controller_unittest.cc
diff --git a/ash/accelerators/accelerator_controller_unittest.cc b/ash/accelerators/accelerator_controller_unittest.cc
index 371fcc265021094d6841f2fffa0bdd2a14eaefbe..1af6f7f4aa990b7263057ec2418c2f147c21bef6 100644
--- a/ash/accelerators/accelerator_controller_unittest.cc
+++ b/ash/accelerators/accelerator_controller_unittest.cc
@@ -769,6 +769,9 @@ TEST_F(AcceleratorControllerTest, DontRepeatToggleFullscreen) {
 
 #if defined(OS_WIN) || defined(USE_X11)
 TEST_F(AcceleratorControllerTest, MAYBE_ProcessOnce) {
+  // The IME event filter interferes with the basic key event propagation we
+  // attempt to do here, so we disable it.
+  DisableIME();
   ui::Accelerator accelerator_a(ui::VKEY_A, ui::EF_NONE);
   TestTarget target;
   GetController()->Register(accelerator_a, &target);