Remove a suppression. Change a suppression.
Remove a suppression. Change a suppression.

One suppression was a real error. The problem has been fixed, and the relevant
CL reverted. The other suppression is a false-positive detected by Dr.Memory.
There is no easy way to programatically prevent it from showing up in Dr.
Memory. Suppress it properly.

BUG=580636

Review URL: https://codereview.chromium.org/1656933005

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#372989}

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