Support InputRouter recycling

content/browser/renderer_host/input/gesture_event_queue.cc

Index: content/browser/renderer_host/input/gesture_event_queue.cc
diff --git a/content/browser/renderer_host/input/gesture_event_queue.cc b/content/browser/renderer_host/input/gesture_event_queue.cc
index b16923be17f7234c5e4d69ceb04979253800eca9..af2d6c429bb1dcd8f50dcdf361647effdb62a657 100644
--- a/content/browser/renderer_host/input/gesture_event_queue.cc
+++ b/content/browser/renderer_host/input/gesture_event_queue.cc
@@ -245,6 +245,16 @@ void GestureEventQueue::ForwardGestureEvent(
     client_->SendGestureEventImmediately(gesture_event);
 }
 
+void GestureEventQueue::Recycle() {
+  fling_in_progress_ = false;
+  scrolling_in_progress_ = false;
+  ignore_next_ack_ = false;
+  coalesced_gesture_events_.clear();
+  debouncing_deferral_queue_.clear();
+  touchpad_tap_suppression_controller_.Reset();
+  touchscreen_tap_suppression_controller_.Reset();
+}
+
 void GestureEventQueue::SendScrollEndingEventsNow() {
   scrolling_in_progress_ = false;
   if (debouncing_deferral_queue_.empty())