Add perf expectations for TEXTREL counts on 32-bit Linux binaries

Add perf expectations for TEXTREL counts on 32-bit Linux binaries

We want sheriffs to notice if any TEXTRELs are added.  A count above zero
is unacceptable on anything but libffmpegsumo.so (which one day should get
down to zero as well, but it's known to be nontrivial).

BUG=109318
TEST= none

R=cmp@chromium.org

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=117449

[cmp, 2012-01-11 22:45:47]

lgtm with a nit and a note

nit: I checked first and I don't see an email from you to chromium-dev as a PSA
noting that there's a new way for patches to get reverted: by increasing TEXTREL
counts.  Please send that, then land this a couple hours later.

note: This is most likely the first sizes expectation that's added that's
absolute and 0.  I expect things to work, but be on the lookout for any
weirdness.