Replace blink wrapper with cc::SnapFlingController

Replace uses of SnapFlingController from
third_party/blink/renderer/platform/scroll_snap_data.h with the
unwrapped type from cc/input/scroll_snap_data.h.

This is part of a series of CLs to remove platform/scroll.

Bug: 922111
Change-Id: I857a0384e1893ffb677701365a793f0bc1528610
Reviewed-on: https://chromium-review.googlesource.com/c/1482456
Commit-Queue: Henrique Ferreiro <hferreiro@igalia.com>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#635002}
5 files changed