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This avoids passing vector* to the function, slightly improves
callsite readability.

Bug: 796395
Change-Id: Ic7e6139d3ea2c9044fc6d7b6b668998c8a370ab0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1869675
Commit-Queue: Istiaque Ahmed <lazyboy@chromium.org>
Reviewed-by: Oleg Davydov <burunduk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#710832}