Delay Input.dispatchKeyEvent response until after key event ack.

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index 51461752667410033694fd108835c8510b2dbdc7..5580243df08629705a2617a7e7086905dbf863c1 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -1948,6 +1948,8 @@ void RenderWidgetHostImpl::OnKeyboardEventAck(
       const NativeWebKeyboardEventWithLatencyInfo& event,
       InputEventAckState ack_result) {
   latency_tracker_.OnInputEventAck(event.event, &event.latency, ack_result);
+  FOR_EACH_OBSERVER(InputEventObserver, input_event_observers_,
+                    OnInputEventAck(event.event, event.event.is_synthetic));
 
   const bool processed = (INPUT_EVENT_ACK_STATE_CONSUMED == ack_result);
 
@@ -1968,6 +1970,8 @@ void RenderWidgetHostImpl::OnMouseEventAck(
     InputEventAckState ack_result) {
   latency_tracker_.OnInputEventAck(mouse_event.event, &mouse_event.latency,
                                    ack_result);
+  FOR_EACH_OBSERVER(InputEventObserver, input_event_observers_,
+                    OnInputEventAck(mouse_event.event, false));
 }
 
 void RenderWidgetHostImpl::OnWheelEventAck(
@@ -1975,6 +1979,8 @@ void RenderWidgetHostImpl::OnWheelEventAck(
     InputEventAckState ack_result) {
   latency_tracker_.OnInputEventAck(wheel_event.event, &wheel_event.latency,
                                    ack_result);
+  FOR_EACH_OBSERVER(InputEventObserver, input_event_observers_,
+                    OnInputEventAck(wheel_event.event, false));
 
   if (!is_hidden() && view_) {
     if (ack_result != INPUT_EVENT_ACK_STATE_CONSUMED &&
@@ -1989,6 +1995,8 @@ void RenderWidgetHostImpl::OnGestureEventAck(
     const GestureEventWithLatencyInfo& event,
     InputEventAckState ack_result) {
   latency_tracker_.OnInputEventAck(event.event, &event.latency, ack_result);
+  FOR_EACH_OBSERVER(InputEventObserver, input_event_observers_,
+                    OnInputEventAck(event.event, false));
 
   if (view_)
     view_->GestureEventAck(event.event, ack_result);
@@ -1998,6 +2006,8 @@ void RenderWidgetHostImpl::OnTouchEventAck(
     const TouchEventWithLatencyInfo& event,
     InputEventAckState ack_result) {
   latency_tracker_.OnInputEventAck(event.event, &event.latency, ack_result);
+  FOR_EACH_OBSERVER(InputEventObserver, input_event_observers_,
+                    OnInputEventAck(event.event, false));
 
   if (touch_emulator_ &&
       touch_emulator_->HandleTouchEventAck(event.event, ack_result)) {