Adjust xpdual/moz/total_byte_b.
Adjust xpdual/moz/total_byte_b.

Re-adjust the expectation for this test result to avoid
false positives.

TBR=nsylvain@chromium.org
BUG=none
TEST=xpdual/moz stays green

Review URL: http://codereview.chromium.org/650170

git-svn-id: http://src.chromium.org/svn/trunk/src@39636 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 3ca4bfa1873ecb34724d55bf9557fc8b7bb3b6d9
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser