Add constructors to WebInputEvents and setters so we can work at cleaning up these public structs.

components/test_runner/event_sender.h

 // 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.
 
 #ifndef COMPONENTS_TEST_RUNNER_EVENT_SENDER_H_
 #define COMPONENTS_TEST_RUNNER_EVENT_SENDER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 170 matching lines @@
                             bool& moved_beyond_slop_region,
                             uint32_t& unique_touch_event_id);
   uint32_t GetUniqueTouchEventId(gin::Arguments* args);
   void SendCurrentTouchEvent(blink::WebInputEvent::Type, gin::Arguments* args);
 
   void GestureEvent(blink::WebInputEvent::Type,
                     gin::Arguments*);
 
   void UpdateClickCountForButton(blink::WebMouseEvent::Button);
 
-  void InitMouseWheelEvent(gin::Arguments* args,
-                           MouseScrollType scroll_type,
-                           blink::WebMouseWheelEvent* event,
-                           bool* send_gestures);
+  blink::WebMouseWheelEvent GetMouseWheelEvent(gin::Arguments* args,
+                                               MouseScrollType scroll_type,
+                                               bool* send_gestures);
   void InitPointerProperties(gin::Arguments* args,
                              blink::WebPointerProperties* e,
                              float* radius_x,
                              float* radius_y);
 
   void FinishDragAndDrop(const blink::WebMouseEvent&, blink::WebDragOperation);
 
+  int ModifiersForPointer(int pointer_id);
   void DoDragAfterMouseUp(const blink::WebMouseEvent&);
   void DoDragAfterMouseMove(const blink::WebMouseEvent&);
   void ReplaySavedEvents();
   blink::WebInputEventResult HandleInputEventOnViewOrPopup(
       const blink::WebInputEvent& event);
 
   void SendGesturesForMouseWheelEvent(
       const blink::WebMouseWheelEvent wheel_event);
 
   std::unique_ptr<blink::WebInputEvent> TransformScreenToWidgetCoordinates(
@@ skipping 119 matching lines @@
   double last_event_timestamp_;
 
   base::WeakPtrFactory<EventSender> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EventSender);
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_EVENT_SENDER_H_