[Touch Adjustment] Pass primary_pointer_type to WebGestureEvent and disable adjustment for stylus

ui/events/gesture_event_details.cc

 // 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.
 
 #include "ui/events/gesture_event_details.h"
 
 namespace ui {
 
 GestureEventDetails::GestureEventDetails()
     : type_(ET_UNKNOWN),
       device_type_(GestureDeviceType::DEVICE_UNKNOWN),
+      primary_pointer_type_(EventPointerType::POINTER_TYPE_UNKNOWN),
       touch_points_(0) {}
 
 GestureEventDetails::GestureEventDetails(ui::EventType type)
     : type_(type),
       device_type_(GestureDeviceType::DEVICE_UNKNOWN),
+      primary_pointer_type_(EventPointerType::POINTER_TYPE_UNKNOWN),
       touch_points_(1) {
   DCHECK_GE(type, ET_GESTURE_TYPE_START);
   DCHECK_LE(type, ET_GESTURE_TYPE_END);
 }
 
 GestureEventDetails::GestureEventDetails(ui::EventType type,
                                          float delta_x,
                                          float delta_y,
                                          ScrollUnits units)
     : type_(type),
       device_type_(GestureDeviceType::DEVICE_UNKNOWN),
+      primary_pointer_type_(EventPointerType::POINTER_TYPE_UNKNOWN),
       touch_points_(1) {
   DCHECK_GE(type, ET_GESTURE_TYPE_START);
   DCHECK_LE(type, ET_GESTURE_TYPE_END);
   switch (type_) {
     case ui::ET_GESTURE_SCROLL_BEGIN:
       data_.scroll_begin.x_hint = delta_x;
       data_.scroll_begin.y_hint = delta_y;
       data_.scroll_begin.delta_hint_units = units;
       break;
 
@@ skipping 23 matching lines @@
     default:
       NOTREACHED() << "Invalid event type for constructor: " << type;
   }
 }
 
 GestureEventDetails::GestureEventDetails(ui::EventType type,
                                          const GestureEventDetails& other)
     : type_(type),
       data_(other.data_),
       device_type_(other.device_type_),
+      primary_pointer_type_(other.primary_pointer_type_),
       touch_points_(other.touch_points_),
       bounding_box_(other.bounding_box_) {
   DCHECK_GE(type, ET_GESTURE_TYPE_START);
   DCHECK_LE(type, ET_GESTURE_TYPE_END);
   switch (type) {
     case ui::ET_GESTURE_SCROLL_BEGIN:
       // Synthetic creation of SCROLL_BEGIN from PINCH_BEGIN is explicitly
       // allowed as an exception.
       if (other.type() == ui::ET_GESTURE_PINCH_BEGIN)
         break;
     case ui::ET_GESTURE_SCROLL_UPDATE:
     case ui::ET_SCROLL_FLING_START:
     case ui::ET_GESTURE_SWIPE:
     case ui::ET_GESTURE_PINCH_UPDATE:
       DCHECK_EQ(type, other.type()) << " - Invalid gesture conversion from "
                                     << other.type() << " to " << type;
       break;
     default:
       break;
   }
 }
 
 GestureEventDetails::Details::Details() {
   memset(this, 0, sizeof(Details));
 }
 
 }  // namespace ui