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The reason for this cl is to avoid setting test's
location data expectation explicitly, which easily changes.
Instead, we use gtest utils to find test's location data.

Bug: 1015157
Change-Id: I6802d476afe68fe872a6fabad3649827d874a4e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1866619Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Ilia Samsonov <isamsonov@google.com>
Cr-Commit-Position: refs/heads/master@{#707615}