Make SyntheticPointerAction to flush the pointer action sequence

content/browser/renderer_host/input/synthetic_gesture.cc

Index: content/browser/renderer_host/input/synthetic_gesture.cc
diff --git a/content/browser/renderer_host/input/synthetic_gesture.cc b/content/browser/renderer_host/input/synthetic_gesture.cc
index cbe9e14566ca9d67adb711f9131d4360dacad501..fd09c2ab43db7fc96da5afafce6c833399f702c3 100644
--- a/content/browser/renderer_host/input/synthetic_gesture.cc
+++ b/content/browser/renderer_host/input/synthetic_gesture.cc
@@ -43,6 +43,9 @@ std::unique_ptr<SyntheticGesture> SyntheticGesture::Create(
     case SyntheticGestureParams::TAP_GESTURE:
       return CreateGesture<SyntheticTapGesture,
                            SyntheticTapGestureParams>(gesture_params);
+    case SyntheticGestureParams::POINTER_ACTION_LIST:
+      return CreateGesture<SyntheticPointerAction,
+                           SyntheticPointerActionListParams>(gesture_params);
     default:
       NOTREACHED() << "Invalid synthetic gesture type";
       return nullptr;