Add blink::WebInputEvent::IsPinchGestureEventType().

chrome/browser/chromeos/first_run/first_run_view.cc

Index: chrome/browser/chromeos/first_run/first_run_view.cc
diff --git a/chrome/browser/chromeos/first_run/first_run_view.cc b/chrome/browser/chromeos/first_run/first_run_view.cc
index a027d840739ebe88be4a69e9603e1e076ecd407a..a14fd00076c316e744fc1c8b0e8ac366c792894d 100644
--- a/chrome/browser/chromeos/first_run/first_run_view.cc
+++ b/chrome/browser/chromeos/first_run/first_run_view.cc
@@ -63,9 +63,7 @@ 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