This results in a roughly 10KB reduction in snapshot_blob.bin on x64.

Change-Id: I72aab2db4e3b2a896f624c3c2afc1ac2e9610e23
Reviewed-on: https://chromium-review.googlesource.com/981911Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Kanghua Yu <kanghua.yu@intel.com>
Cr-Commit-Position: refs/heads/master@{#52264}