Move WebInputEvent into public/platform from public/web

ui/events/blink/blink_event_util.cc

Index: ui/events/blink/blink_event_util.cc
diff --git a/ui/events/blink/blink_event_util.cc b/ui/events/blink/blink_event_util.cc
index fcf950b03edab73d6ad5c35d2d2ee78ab0f84ecb..a7cba9d0bfcf7db2f00a6ade41539b859aea684f 100644
--- a/ui/events/blink/blink_event_util.cc
+++ b/ui/events/blink/blink_event_util.cc
@@ -164,7 +164,7 @@ blink::WebTouchEvent CreateWebTouchEventFromMotionEvent(
     const MotionEvent& event,
     bool moved_beyond_slop_region) {
   static_assert(static_cast<int>(MotionEvent::MAX_TOUCH_POINT_COUNT) ==
-                    static_cast<int>(blink::WebTouchEvent::touchesLengthCap),
+                    static_cast<int>(blink::WebTouchEvent::kTouchesLengthCap),
                 "inconsistent maximum number of active touch points");
 
   blink::WebTouchEvent result;
@@ -180,7 +180,7 @@ blink::WebTouchEvent CreateWebTouchEventFromMotionEvent(
   result.uniqueTouchEventId = event.GetUniqueEventId();
   result.touchesLength =
       std::min(static_cast<unsigned>(event.GetPointerCount()),
-               static_cast<unsigned>(WebTouchEvent::touchesLengthCap));
+               static_cast<unsigned>(WebTouchEvent::kTouchesLengthCap));
   DCHECK_GT(result.touchesLength, 0U);
 
   for (size_t i = 0; i < result.touchesLength; ++i)