Add a mechanism to provide non-linear scaling of fling acceleration.

touchscreen fling is too slow at high velocities. This patch addes a
facility to permit adjusting the fling acceleration multiplier
differently across a uniform range of fling velocities so that fast
flings can go extra fast and slow flings will be gentle.

BUG=141653


Review URL: https://chromiumcodereview.appspot.com/11231018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@163693 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed