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

Committed: https://crrev.com/1ed4075728f265ed930531b4ba97c937068d921a
Cr-Commit-Position: refs/heads/master@{#311640}

[Anand Mistry (off Chromium), 2015-01-15 07:09:01]

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

[commit-bot: I haz the power, 2015-01-15 07:09:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/827123006/1

[commit-bot: I haz the power, 2015-01-15 07:10:30]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-15 07:11:22]

Patchset 1 (id:??) landed as
https://crrev.com/1ed4075728f265ed930531b4ba97c937068d921a
Cr-Commit-Position: refs/heads/master@{#311640}

[Michael Achenbach, 2015-01-15 11:10:09]

This breaks
http://build.chromium.org/p/chromium.linux/builders/Android%20Clang%20Builder...
the revert actually did fix that builder. The reland broke it again. Please
revert again.

[Michael Achenbach, 2015-01-15 11:12:28]

Hold on. It looks like it either breaks the Android builder or the Android clang
builder, dependent on if it's in or not.