R=bmeurer@chromium.org
TEST=cctest/test-api/ReceiverSignature

Change-Id: I4f58d7a1ce15aa02b1fec5c0317733d3f3b1f4ef
Reviewed-on: https://chromium-review.googlesource.com/611990Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47308}