Version 15.4.1

As starting Chrome 55, there is a new event `auxclick` to handle middle click, and `click` doesn't trigger by middle click anymore
https://developers.google.com/web/updates/2016/10/auxclick
export const TOP_ANIMATION_ITERATION = unsafeCastStringToDOMTopLevelType(
  getVendorPrefixedEventName('animationiteration'),
);
export const TOP_ANIMATION_START = unsafeCastStringToDOMTopLevelType(
  getVendorPrefixedEventName('animationstart'),
);
export const TOP_BLUR = unsafeCastStringToDOMTopLevelType('blur');
export const TOP_CAN_PLAY = unsafeCastStringToDOMTopLevelType('canplay');
export const TOP_CAN_PLAY_THROUGH = unsafeCastStringToDOMTopLevelType(
  'canplaythrough',
);
export const TOP_CANCEL = unsafeCastStringToDOMTopLevelType('cancel');
export const TOP_CHANGE = unsafeCastStringToDOMTopLevelType('change');
export const TOP_CLICK = unsafeCastStringToDOMTopLevelType('click');
export const TOP_CLOSE = unsafeCastStringToDOMTopLevelType('close');
export const TOP_COMPOSITION_END = unsafeCastStringToDOMTopLevelType(
  'compositionend',
);
export const TOP_COMPOSITION_START = unsafeCastStringToDOMTopLevelType(
  'compositionstart',
);
export const TOP_COMPOSITION_UPDATE = unsafeCastStringToDOMTopLevelType(
  'compositionupdate',
);
export const TOP_CONTEXT_MENU = unsafeCastStringToDOMTopLevelType(
  'contextmenu',
);
export const TOP_COPY = unsafeCastStringToDOMTopLevelType('copy');
export const TOP_CUT = unsafeCastStringToDOMTopLevelType('cut');
export const TOP_DOUBLE_CLICK = unsafeCastStringToDOMTopLevelType('dblclick');