Broaden the suppression for the threads TileTaskGraphRunner leaks.

Broaden the suppression for the threads TileTaskGraphRunner leaks.

Both ImageDecodeTaskImpl and RasterTaskImpl are affected, and each races with
lots of objects that are destroyed during render-process shutdown.

BUG=430533
TBR=reveman@chromium.org
NOTRY=true

Committed: https://crrev.com/cec2f2fe0176dd25c3f1420f43fe15a3deac7622
Cr-Commit-Position: refs/heads/master@{#311106}

[Jeffrey Yasskin, 2015-01-12 20:54:24]

The CQ bit was checked by jyasskin@chromium.org

[commit-bot: I haz the power, 2015-01-12 20:54:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/789103009/1

[commit-bot: I haz the power, 2015-01-12 20:55:34]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-12 20:56:35]

Patchset 1 (id:??) landed as
https://crrev.com/cec2f2fe0176dd25c3f1420f43fe15a3deac7622
Cr-Commit-Position: refs/heads/master@{#311106}