GitLab

This CL adds scroll predictor in compositor thread under flag
kResamplingScrollEvents.

design doc:
https://docs.google.com/document/d/1g6eGYdLZKznF3sCiktc5BbAPeiudWk8xTzx3qdrxowI/edit#

Bug: 836352
Change-Id: Iecfad7ad75dd4b871426e00a2f2d542996544b07
Reviewed-on: https://chromium-review.googlesource.com/919662
Commit-Queue: Ella Ge <eirage@chromium.org>
Reviewed-by: Sahel Sharifymoghaddam <sahel@chromium.org>
Reviewed-by: Dave Tapuska <dtapuska@chromium.org>
Reviewed-by: Navid Zolghadr <nzolghadr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#568003}