Gesture library is modified to always sends a Fling after Scroll

If the fingers are not moving during the latest events, the fling
will have the size 0. The Fling must be sent because back/forward
actions in chrome need a fling after the scroll event.

BUG=chrome-os-partner:41172
TEST=CL:287621

Change-Id: I449dd67934d936ca056c4daa012a75d8d4857c95
Reviewed-on: https://chromium-review.googlesource.com/284625
Reviewed-by: Andrew de los Reyes <adlr@chromium.org>
Commit-Queue: Amirhossein Simjour <asimjour@chromium.org>
Tested-by: Amirhossein Simjour <asimjour@chromium.org>
1 file changed