Revert of Remove enable/disable wheel gestures setting.

components/test_runner/web_test_proxy.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 "components/test_runner/web_test_proxy.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "components/test_runner/accessibility_controller.h"
@@ skipping 20 matching lines @@
 
 WebTestProxyBase::~WebTestProxyBase() {
   test_interfaces_->WindowClosed(this);
 }
 
 void WebTestProxyBase::SetInterfaces(WebTestInterfaces* interfaces) {
   test_interfaces_ = interfaces->GetTestInterfaces();
   test_interfaces_->WindowOpened(this);
 }
 
+void WebTestProxyBase::SetSendWheelGestures(bool send_gestures) {
+  event_sender_->set_send_wheel_gestures(send_gestures);
+}
+
 void WebTestProxyBase::Reset() {
   accessibility_controller_->Reset();
   event_sender_->Reset();
   // text_input_controller_ doesn't have any state to reset.
   view_test_runner_->Reset();
 }
 
 void WebTestProxyBase::BindTo(blink::WebLocalFrame* frame) {
   accessibility_controller_->Install(frame);
   event_sender_->Install(frame);
   text_input_controller_->Install(frame);
   view_test_runner_->Install(frame);
 }
 
 }  // namespace test_runner