Reland TestExpectation changes for rebaselining tests related to Mac 10.10 text changes.

Reland TestExpectation changes for rebaselining tests related to Mac 10.10 text changes.

This forces rebaseline-o-matic to process lines added prior to the blink merge.

Original CL: https://codereview.chromium.org/1360923002

BUG=524646, 535351
TBR=jbroman@chromium.org
NOTRY=true

Committed: https://crrev.com/2100e8bedcda2a8131349916a51864a40088b3e8
Cr-Commit-Position: refs/heads/master@{#351985}

[joelo, 2015-10-02 09:04:06]

The CQ bit was checked by joelo@chromium.org

[commit-bot: I haz the power, 2015-10-02 09:04:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1382173002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1382173002/1

[commit-bot: I haz the power, 2015-10-02 09:11:23]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-10-02 09:11:24]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[joelo, 2015-10-02 09:13:13]

The CQ bit was checked by joelo@chromium.org

[commit-bot: I haz the power, 2015-10-02 09:13:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1382173002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1382173002/20001

[commit-bot: I haz the power, 2015-10-02 09:18:57]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-10-02 09:20:07]

Patchset 2 (id:??) landed as
https://crrev.com/2100e8bedcda2a8131349916a51864a40088b3e8
Cr-Commit-Position: refs/heads/master@{#351985}