Fixs bug resulting in double event delivery in mus

ui/views/test/views_test_base.cc

Index: ui/views/test/views_test_base.cc
diff --git a/ui/views/test/views_test_base.cc b/ui/views/test/views_test_base.cc
index 4147f01be0a5c8901a3669dd45e8cbd74ce14c3d..6c8eccba1a1ff5658787731623506907b228b162 100644
--- a/ui/views/test/views_test_base.cc
+++ b/ui/views/test/views_test_base.cc
@@ -109,6 +109,10 @@ void ViewsTestBase::SimulateNativeDestroy(Widget* widget) {
   test_helper_->platform_test_helper()->SimulateNativeDestroy(widget);
 }
 
+void ViewsTestBase::DisableMusInputMethod(Widget* widget) {
+  test_helper_->platform_test_helper()->DisableMusInputMethod(widget);
+}
+
 gfx::NativeWindow ViewsTestBase::GetContext() {
   return test_helper_->GetContext();
 }