Simulate interactivity boost for simulated user input events

telemetry/telemetry/internal/actions/key_event.py

Index: telemetry/telemetry/internal/actions/key_event.py
diff --git a/telemetry/telemetry/internal/actions/key_event.py b/telemetry/telemetry/internal/actions/key_event.py
index 1558607f0e3d5df23e7e3a0fb0d81cdacfe098bc..de7437b63ae3248cc9cb669188d1347d0e97c4bc 100644
--- a/telemetry/telemetry/internal/actions/key_event.py
+++ b/telemetry/telemetry/internal/actions/key_event.py
@@ -79,6 +79,9 @@ class KeyPressAction(page_action.PageAction):
     self._windows_virtual_key_code, self._text = _KEY_MAP[dom_key]
     self._timeout = timeout
 
+  def SimulatesUserInput(self):
+    return True
+
   def RunAction(self, tab):
     tab.DispatchKeyEvent(keyEventType='rawKeyDown',
                          domKey=self._dom_key,