Auto-rebaseline for r170214

http://src.chromium.org/viewvc/blink?view=revision&revision=170214

BUG=345027
TBR=enne@chromium.org

Review URL: https://codereview.chromium.org/216153002

git-svn-id: svn://svn.chromium.org/blink/trunk@170251 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[refactor] Split up generateKey.html into multiple files, and test errors directly.

BUG=245025

Review URL: https://codereview.chromium.org/215153005

git-svn-id: svn://svn.chromium.org/blink/trunk@170252 bbb929c8-8fbe-4397-9dbb-9b2b20218538