Update ChromeOS expectations after warning changes

Update ChromeOS expectations after warning changes

The diffs are tiny. They resulted from changes in between revisions
12307 and 12334, inclusive. We suspect the change is from r12314.

Would have gone in along with r12318, except the ChromeOS bots were
down at the time, and not generating new images.

Committed: https://code.google.com/p/skia/source/detail?r=12354

[scroggo, 2013-11-21 20:12:47]

Committed patchset #1 manually as r12354 (presubmit successful).

[mtklein, 2013-11-21 20:13:42]

lgtm