Touch flings should not bubble.
Currently touch flings can bubble out of an accelerated overflow scrolling div,
but this should not happen.
Looking at InputHandlerProxy::HandleGestureFling, FlingScrollBegin appears to be used for touch fling. Given that this is the case, I've set should_bubble_scrolls_ to false there.
Tests:
TouchFlingShouldNotBubble
- checks that this fling doesn't bubble.
WheelFlingShouldBubble
- checks that this does.
R=danakj@chromium.org,aelias@chromium.org
BUG=270281
Review URL: https://codereview.chromium.org/
26470004
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227585 0039d316-1c4b-4281-b951-d872f2087c98