Fix flakiness of virtual/android/media/mediadocument/media-document-with-download-button.html

Fix flakiness of virtual/android/media/mediadocument/media-document-with-download-button.html

The timer and slider may be different causing flakiness.
Mask out the timer and slider.

BUG=667953
NOTRY=true
TBR=qinmin@chromium.org

Committed: https://crrev.com/e01fc4dd9113c80a0250bba1b6ac4d5d177298a3
Cr-Commit-Position: refs/heads/master@{#437397}

[Xianzhu, 2016-12-08 23:21:32]

Description was changed from

==========
Fix flakiness of
virtual/android/media/mediadocument/media-document-with-download-button.html

The timer and slider may be different causing flakiness.
Mask out the timer and slider.

BUG=667953
==========

to

==========
Fix flakiness of
virtual/android/media/mediadocument/media-document-with-download-button.html

The timer and slider may be different causing flakiness.
Mask out the timer and slider.

BUG=667953
NOTRY=true
TBR=qinmin@chromium.org
==========

[Xianzhu, 2016-12-08 23:21:36]

The CQ bit was checked by wangxianzhu@chromium.org

[commit-bot: I haz the power, 2016-12-08 23:22:02]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-09 01:09:22]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481239296691670, "parent_rev":
"65b42f52c2a98698887750456cd471942f7c3e32", "commit_rev":
"5c11458a4052033fb05c8fb75b3a8b058ab19424"}

[commit-bot: I haz the power, 2016-12-09 01:11:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-09 01:14:35]

Description was changed from

==========
Fix flakiness of
virtual/android/media/mediadocument/media-document-with-download-button.html

The timer and slider may be different causing flakiness.
Mask out the timer and slider.

BUG=667953
NOTRY=true
TBR=qinmin@chromium.org
==========

to

==========
Fix flakiness of
virtual/android/media/mediadocument/media-document-with-download-button.html

The timer and slider may be different causing flakiness.
Mask out the timer and slider.

BUG=667953
NOTRY=true
TBR=qinmin@chromium.org

Committed: https://crrev.com/e01fc4dd9113c80a0250bba1b6ac4d5d177298a3
Cr-Commit-Position: refs/heads/master@{#437397}
==========

[commit-bot: I haz the power, 2016-12-09 01:14:36]

Patchset 1 (id:??) landed as
https://crrev.com/e01fc4dd9113c80a0250bba1b6ac4d5d177298a3
Cr-Commit-Position: refs/heads/master@{#437397}