viz hit_test: Pass SurfaceId by const-ref

SurfaceIds are large and so they should always be passed by const-ref.

Bug: none
Change-Id: I0836c43fe782ac925a070e650a9a1680afa6a2d8
Reviewed-on: https://chromium-review.googlesource.com/574649
Reviewed-by: Robert Kroeger <rjkroege@chromium.org>
Commit-Queue: Fady Samuel <fsamuel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#487115}
2 files changed