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Start forwarding points from the browser process directly to viz via the
UI compositor when delegated ink trails are being drawn. This CL gets
the point to Display, the next CL will start storing the points and
using them as they arrive.

This CL only supports aura, follow up CLs will add support for Android
and Mac.

Bug: 1052145
Change-Id: Ic36d45bd960d358ececaf0312ce801da33686966
Cq-Do-Not-Cancel-Tryjobs: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2259015Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Jonathan Ross <jonross@chromium.org>
Reviewed-by: kylechar <kylechar@chromium.org>
Reviewed-by: Daniel Libby <dlibby@microsoft.com>
Commit-Queue: Mario Bianucci <mabian@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#792419}