Avoid toggling app list if interrupted by mouse

ui/wm/core/accelerator_filter.cc

Index: ui/wm/core/accelerator_filter.cc
diff --git a/ui/wm/core/accelerator_filter.cc b/ui/wm/core/accelerator_filter.cc
index 03ea898737df0f39963032d3863a04f738ecb66c..21f10d5bf05ab67b807da977ad3d66f9f95fd32e 100644
--- a/ui/wm/core/accelerator_filter.cc
+++ b/ui/wm/core/accelerator_filter.cc
@@ -46,4 +46,11 @@ void AcceleratorFilter::OnKeyEvent(ui::KeyEvent* event) {
     event->StopPropagation();
 }
 
+void AcceleratorFilter::OnMouseEvent(ui::MouseEvent* event) {
+  if (event->type() == ui::ET_MOUSE_PRESSED ||
+      event->type() == ui::ET_MOUSE_RELEASED) {
+    accelerator_history_->InterruptCurrentAccelerator();
+  }
+}
+
 }  // namespace wm