Forward secondary touch points even if the first had no consumer
Previously, if the first touch point in a sequence had no consumer, no further
touches from that sequence would be forwarded to the renderer. Instead, only
prevent touches from being forwarded if *none* of the current touch points have
a consumer when scrolling begins.
Also fix a corner case where follow-up touches triggered acks from deferred
async touchmoves would never be forwarded.
BUG=363321
Review URL: https://codereview.chromium.org/259763010
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@266934 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed
