Add pointer id to the WebMouseEvent's constructors

third_party/WebKit/Source/platform/WebMouseEvent.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 "public/platform/WebMouseEvent.h"
 
 #include "public/platform/WebGestureEvent.h"
 
 namespace blink {
 
 WebMouseEvent::WebMouseEvent(WebInputEvent::Type type,
                              const WebGestureEvent& gesture_event,
                              Button button_param,
                              int click_count_param,
                              int modifiers,
-                             double time_stamp_seconds)
+                             double time_stamp_seconds,
+                             PointerId id_param)
     : WebInputEvent(sizeof(WebMouseEvent), type, modifiers, time_stamp_seconds),
-      WebPointerProperties(button_param,
+      WebPointerProperties(id_param,
+                           button_param,
                            WebPointerProperties::PointerType::kMouse),
       click_count(click_count_param),
       position_in_widget_(gesture_event.x, gesture_event.y),
       position_in_screen_(gesture_event.global_x, gesture_event.global_y) {
   SetFrameScale(gesture_event.FrameScale());
   SetFrameTranslate(gesture_event.FrameTranslate());
 }
 
 WebFloatPoint WebMouseEvent::MovementInRootFrame() const {
   return WebFloatPoint((movement_x / frame_scale_),
@@ skipping 16 matching lines @@
   position_in_widget_.x =
       floor((position_in_widget_.x / frame_scale_) + frame_translate_.x);
   position_in_widget_.y =
       floor((position_in_widget_.y / frame_scale_) + frame_translate_.y);
   frame_translate_.x = 0;
   frame_translate_.y = 0;
   frame_scale_ = 1;
 }
 
 }  // namespace blink