Revert of Remove enable/disable wheel gestures setting.

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 42 matching lines @@
   explicit EventSender(WebTestProxyBase*);
   virtual ~EventSender();
 
   void Reset();
   void Install(blink::WebLocalFrame*);
 
   void SetContextMenuData(const blink::WebContextMenuData&);
 
   void DoDragDrop(const blink::WebDragData&, blink::WebDragOperationsMask);
 
+  void set_send_wheel_gestures(bool send_wheel_gestures) {
+    send_wheel_gestures_ = send_wheel_gestures;
+  }
+
  private:
   friend class EventSenderBindings;
 
   void MouseDown(int button_number, int modifiers);
   void MouseUp(int button_number, int modifiers);
   void PointerDown(int button_number,
                    int modifiers,
                    blink::WebPointerProperties::PointerType,
                    int pointerId);
   void PointerUp(int button_number,
@@ skipping 171 matching lines @@
   int wm_sys_char_;
   int wm_sys_dead_char_;
 #endif
 
   WebTestProxyBase* web_test_proxy_base_;
   TestInterfaces* interfaces();
   WebTestDelegate* delegate();
   const blink::WebView* view() const;
   blink::WebView* view();
 
+  bool send_wheel_gestures_;
   bool force_layout_on_events_;
 
   // When set to true (the default value), we batch mouse move and mouse up
   // events so we can simulate drag & drop.
   bool is_drag_mode_;
 
   int touch_modifiers_;
   bool touch_cancelable_;
   std::vector<blink::WebTouchPoint> touch_points_;
 
@@ skipping 50 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_