Increase test cert key to fix web_driver tests

Bug: 934875
Change-Id: I2d045792fa4f021b7b8183bb95d65138e99c2aa6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1521449
Commit-Queue: rajendrant <rajendrant@chromium.org>
Reviewed-by: Robert Ogden <robertogden@chromium.org>
Cr-Commit-Position: refs/heads/master@{#640461}
2 files changed