Add getCoalescedEvents API to PointerEvent

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"
@@ skipping 288 matching lines @@
   if (!m_frame->page()->isCursorVisible())
     return;
 
   PlatformMouseEvent fakeMouseMoveEvent(
       m_lastKnownMousePosition, m_lastKnownMouseGlobalPosition,
       WebPointerProperties::Button::NoButton, PlatformEvent::MouseMoved, 0,
       static_cast<PlatformEvent::Modifiers>(
           KeyboardEventManager::getCurrentModifierState()),
       PlatformMouseEvent::RealOrIndistinguishable,
       monotonicallyIncreasingTime(), WebPointerProperties::PointerType::Mouse);
-  m_frame->eventHandler().handleMouseMoveEvent(fakeMouseMoveEvent);
+  Vector<PlatformMouseEvent> coalescedEvents;
+  m_frame->eventHandler().handleMouseMoveEvent(fakeMouseMoveEvent,
+                                               coalescedEvents);
 }
 
 void MouseEventManager::cancelFakeMouseMoveEvent() {
   m_fakeMouseMoveEventTimer.stop();
 }
 
 void MouseEventManager::setNodeUnderMouse(
     Node* target,
     const PlatformMouseEvent& platformMouseEvent) {
   Node* lastNodeUnderMouse = m_nodeUnderMouse;
@@ skipping 669 matching lines @@
 
 void MouseEventManager::setClickCount(int clickCount) {
   m_clickCount = clickCount;
 }
 
 bool MouseEventManager::mouseDownMayStartDrag() {
   return m_mouseDownMayStartDrag;
 }
 
 }  // namespace blink