Update leak_detector to latest PausableObject changes

FontFaceSet pausable object was removed in:
https://crrev.com/869255859135c13bf164e9d92d98ceea13aa0cc2

I'm not certain when the PausableTimer was removed from the
DocumentLoader but PausableTimer no longer exists so it is gone anyways.

BUG=907125

Change-Id: I85da3db3a96e9952d54ba5060d21346b29a0a819
Reviewed-on: https://chromium-review.googlesource.com/c/1407664
Reviewed-by: Mike West <mkwst@chromium.org>
Commit-Queue: Dave Tapuska <dtapuska@chromium.org>
Cr-Commit-Position: refs/heads/master@{#622451}
1 file changed