Update perf_expectations.json for nacl_helper_bootstrap (x86-32)

This change addresses a build break from r145661.

This is the same as r145663, but for the 32-bit version of
nacl_helper_bootstrap which I missed before.

BUG=http://code.google.com/p/nativeclient/issues/detail?id=2844
TEST=none

Review URL: https://chromiumcodereview.appspot.com/10690107

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@145664 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed