Remove TouchEventDispatchResultType.

TouchEventDispatchResultType is unused, remove it.

Change-Id: I9f3e49d5d9599dd5448bc54c2b9c71602b1cc325
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1506917Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Commit-Queue: Zhuoyu Qian <zhuoyu.qian@samsung.com>
Cr-Commit-Position: refs/heads/master@{#638491}

third_party/blink/renderer/core/input/touch_event_manager.cc

@@ -79,12 +79,6 @@ const AtomicString& TouchEventNameForPointerEventType(
   }
 }
 
-enum TouchEventDispatchResultType {
-  kUnhandledTouches,  // Unhandled touch events.
-  kHandledTouches,    // Handled touch events.
-  kTouchEventDispatchResultTypeMax,
-};
-
 WebTouchPoint::State TouchPointStateFromPointerEventType(
     WebInputEvent::Type type,
     bool stale) {