Add 1 pixel of tolerance to the basic test.

This is the first failure that the E2E test is running into when being
run on IE9

Change-Id: I60fe8764196ecc60e2c365576349cf902a069ddb
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/577
Merge "Add 1 pixel of tolerance to the basic test."