Move the fake mouse move event timer to the UserInteraction task queue.

third_party/WebKit/Source/core/input/MouseEventManager.cpp

 // Copyright 2016 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.
 
 #include "core/input/MouseEventManager.h"
 
 #include "core/clipboard/DataObject.h"
 #include "core/clipboard/DataTransfer.h"
 #include "core/dom/Element.h"
 #include "core/dom/ElementTraversal.h"
+#include "core/dom/TaskRunnerHelper.h"
 #include "core/editing/FrameSelection.h"
 #include "core/editing/SelectionController.h"
 #include "core/events/DragEvent.h"
 #include "core/events/MouseEvent.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLCanvasElement.h"
 #include "core/input/EventHandler.h"
 #include "core/input/EventHandlingUtil.h"
@@ skipping 51 matching lines @@
 
 }  // namespace
 
 enum class DragInitiator { Mouse, Touch };
 
 MouseEventManager::MouseEventManager(LocalFrame& frame,
                                      ScrollManager& scrollManager)
     : m_frame(frame),
       m_scrollManager(scrollManager),
       m_fakeMouseMoveEventTimer(
+          TaskRunnerHelper::get(TaskType::UserInteraction, &frame),
           this,
           &MouseEventManager::fakeMouseMoveEventTimerFired) {
   clear();
 }
 
 void MouseEventManager::clear() {
   m_nodeUnderMouse = nullptr;
   m_mousePressNode = nullptr;
   m_mouseDownMayStartAutoscroll = false;
   m_mouseDownMayStartDrag = false;
@@ skipping 896 matching lines @@
 
 void MouseEventManager::setClickCount(int clickCount) {
   m_clickCount = clickCount;
 }
 
 bool MouseEventManager::mouseDownMayStartDrag() {
   return m_mouseDownMayStartDrag;
 }
 
 }  // namespace blink