Enable sending gesture events from layout tests

content/shell/renderer/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 CONTENT_SHELL_RENDERER_TEST_RUNNER_EVENT_SENDER_H_
 #define CONTENT_SHELL_RENDERER_TEST_RUNNER_EVENT_SENDER_H_
 
 #include <queue>
 #include <string>
 #include <vector>
@@ skipping 117 matching lines @@
   void BeginDragWithFiles(const std::vector<std::string>& files);
 
   void AddTouchPoint(gin::Arguments* args);
 
   void MouseDragBegin();
   void MouseDragEnd();
 
   void GestureScrollBegin(gin::Arguments* args);
   void GestureScrollEnd(gin::Arguments* args);
   void GestureScrollUpdate(gin::Arguments* args);
+  void GesturePinchBegin(gin::Arguments* args);
+  void GesturePinchEnd(gin::Arguments* args);
+  void GesturePinchUpdate(gin::Arguments* args);
   void GestureTap(gin::Arguments* args);
   void GestureTapDown(gin::Arguments* args);
   void GestureShowPress(gin::Arguments* args);
   void GestureTapCancel(gin::Arguments* args);
   void GestureLongPress(gin::Arguments* args);
   void GestureLongTap(gin::Arguments* args);
   void GestureTwoFingerTap(gin::Arguments* args);
 
   void ContinuousMouseScrollBy(gin::Arguments* args);
   void MouseMoveTo(gin::Arguments* args);
@@ skipping 128 matching lines @@
   int click_count_;
 
   base::WeakPtrFactory<EventSender> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EventSender);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_EVENT_SENDER_H_