Simulate interactivity boost for simulated user input events

telemetry/telemetry/internal/actions/scroll_bounce.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from telemetry.internal.actions import page_action
 from telemetry.internal.actions import utils
 from telemetry.util import js_template
 
 
 class ScrollBounceAction(page_action.PageAction):
@@ skipping 23 matching lines @@
     self._repeat_count = repeat_count
     # 7 pixels per frame should be plenty of frames.
     self._speed = speed_in_pixels_per_second
     self._synthetic_gesture_source = ('chrome.gpuBenchmarking.%s_INPUT' %
                                       synthetic_gesture_source)
 
     if (self._selector is None and self._text is None and
         self._element_function is None):
       self._element_function = '(document.scrollingElement || document.body)'
 
+  def SimulatesUserInput(self):
+    return True
+
   def WillRunAction(self, tab):
     utils.InjectJavaScript(tab, 'gesture_common.js')
     utils.InjectJavaScript(tab, 'scroll_bounce.js')
 
     # Fail if browser doesn't support synthetic scroll bounce gestures.
     if not tab.EvaluateJavaScript(
         'window.__ScrollBounceAction_SupportedByBrowser()'):
       raise page_action.PageActionNotSupported(
           'Synthetic scroll bounce not supported for this browser')
 
@@ skipping 35 matching lines @@
         direction=self._direction,
         distance=self._distance,
         overscroll=self._overscroll,
         repeat_count=self._repeat_count,
         speed=self._speed)
     page_action.EvaluateCallbackWithElement(
         tab, code, selector=self._selector, text=self._text,
         element_function=self._element_function)
     tab.WaitForJavaScriptCondition(
         'window.__scrollBounceActionDone', timeout=60)