PDF scrolling with wheel gestures

content/browser/renderer_host/input/mouse_wheel_event_queue.cc

Index: content/browser/renderer_host/input/mouse_wheel_event_queue.cc
diff --git a/content/browser/renderer_host/input/mouse_wheel_event_queue.cc b/content/browser/renderer_host/input/mouse_wheel_event_queue.cc
index a777b860b3716204efa2142bd0212acf2d2be8f2..2442b161aded41a60d2a3d81ef1b3806caf27183 100644
--- a/content/browser/renderer_host/input/mouse_wheel_event_queue.cc
+++ b/content/browser/renderer_host/input/mouse_wheel_event_queue.cc
@@ -84,6 +84,7 @@ void MouseWheelEventQueue::ProcessMouseWheelAck(
   // If event wasn't consumed then generate a gesture scroll for it.
   if (send_gestures_ && ack_result != INPUT_EVENT_ACK_STATE_CONSUMED &&
       event_sent_for_gesture_ack_->event.canScroll &&
+      event_sent_for_gesture_ack_->event.resendingPluginId == -1 &&
       (scrolling_device_ == blink::WebGestureDeviceUninitialized ||
        scrolling_device_ == blink::WebGestureDeviceTouchpad)) {
     WebGestureEvent scroll_update;