Add blink::WebInputEvent::IsPinchGestureEventType().

chrome/browser/chromeos/first_run/first_run_view.cc

 // Copyright 2013 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 "chrome/browser/chromeos/first_run/first_run_view.h"
 
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
 #include "chrome/browser/ui/webui/chromeos/first_run/first_run_ui.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/render_view_host.h"
@@ skipping 45 matching lines @@
 bool FirstRunView::HandleContextMenu(
     const content::ContextMenuParams& params) {
   // Discards context menu.
   return true;
 }
 
 bool FirstRunView::PreHandleGestureEvent(
     content::WebContents* source,
     const blink::WebGestureEvent& event) {
   // Disable pinch zooming.
-  return event.GetType() == blink::WebGestureEvent::kGesturePinchBegin ||
-         event.GetType() == blink::WebGestureEvent::kGesturePinchUpdate ||
-         event.GetType() == blink::WebGestureEvent::kGesturePinchEnd;
+  return blink::WebInputEvent::IsPinchGestureEventType(event.GetType());
 }
 
 }  // namespace chromeos