Replace blink::SnapContainerData wrapper with cc::SnapContainerData

Replace uses of SnapContainerData 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: Id900c7fc7cbe1a50e16fdffcd0ff78e031548ba1
Reviewed-on: https://chromium-review.googlesource.com/c/1479994
Commit-Queue: Henrique Ferreiro <hferreiro@igalia.com>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634391}
7 files changed