Mark ToastHWATest#testDownloadingToast flaky

Mark ToastHWATest#testDownloadingToast flaky

It failed in the following builds:
http://build.chromium.org/p/chromium.android/builders/Lollipop%20Phone%20Tester/builds/8146
http://build.chromium.org/p/chromium.android/builders/Lollipop%20Phone%20Tester/builds/8155

TBR=dskiba@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=668217
Committed: https://crrev.com/31793fa1aa3500139091f4b1c26e9302598ad0c8
Cr-Commit-Position: refs/heads/master@{#434523}

[johnme, 2016-11-25 16:31:43]

The CQ bit was checked by johnme@chromium.org

[commit-bot: I haz the power, 2016-11-25 16:31:58]

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, 2016-11-25 16:32:28]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480091503219610, "parent_rev":
"7c6c026496862cc9073a29438969cb960ea52a9c", "commit_rev":
"ff381bf488cf415a928b5be11e66dc3d104ab9d1"}

[commit-bot: I haz the power, 2016-11-25 16:32:55]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-25 16:34:48]

Description was changed from

==========
Mark ToastHWATest#testDownloadingToast flaky

It failed in the following builds:
http://build.chromium.org/p/chromium.android/builders/Lollipop%20Phone%20Test...
http://build.chromium.org/p/chromium.android/builders/Lollipop%20Phone%20Test...

TBR=dskiba@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=668217
==========

to

==========
Mark ToastHWATest#testDownloadingToast flaky

It failed in the following builds:
http://build.chromium.org/p/chromium.android/builders/Lollipop%20Phone%20Test...
http://build.chromium.org/p/chromium.android/builders/Lollipop%20Phone%20Test...

TBR=dskiba@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=668217

Committed: https://crrev.com/31793fa1aa3500139091f4b1c26e9302598ad0c8
Cr-Commit-Position: refs/heads/master@{#434523}
==========

[commit-bot: I haz the power, 2016-11-25 16:34:48]

Patchset 1 (id:??) landed as
https://crrev.com/31793fa1aa3500139091f4b1c26e9302598ad0c8
Cr-Commit-Position: refs/heads/master@{#434523}