Revert of Reverting due to Android builders breakage. Subsequent fixes did not fix...

Revert of Reverting due to Android builders breakage. Subsequent fixes did not fix. (patchset #1 id:1 of https://codereview.chromium.org/843913006/)

Reason for revert:
Didn't fix the Android builders.

Original issue's description:
> Reverting due to Android builders breakage. Subsequent fixes did not fix.
>
> Revert "Use SuppressFBWarnings to suppress findbugs warnings"
>
> This reverts commit 7ff0672b2a8c73be5a0164a04bc9c53f64f4b138.
>
> Revert "Temporarily add a workaround for findbugs."
>
> This reverts commit 790b64ba7f5343b6b99c97e8deaa635e1e9422d0.
>
> Revert "Temporarily remove some findbugs "known bugs""
>
> This reverts commit 5a1c59272e7fd23116bcec8b952474e62bdcf7d3.
>
> NOTRY=true
> TBR=cjhopman@chromium.org
>
> Committed: https://crrev.com/710d2f69b76e7b997307a7096e31029857e8c7fb
> Cr-Commit-Position: refs/heads/master@{#311630}

TBR=cjhopman@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/827123006

Cr-Commit-Position: refs/heads/master@{#311640}