Remove redundant function param in GetProfilerCallback()

Bug: 851163
Change-Id: I93d7ea84b7a3b99058a4a619782501aba2e0f21f
Reviewed-on: https://chromium-review.googlesource.com/1174976
Reviewed-by: Mike Wittman <wittman@chromium.org>
Commit-Queue: Xi Cheng <chengx@chromium.org>
Cr-Commit-Position: refs/heads/master@{#583122}
4 files changed