[chromedriver] Make tabs visible when switching to windows/tabs.

[chromedriver] Make tabs visible when switching to windows/tabs.

BUG=chromedriver:1315
Review-Url: https://codereview.chromium.org/2751253005
Cr-Commit-Position: refs/heads/master@{#459589}
Committed: https://chromium.googlesource.com/chromium/src/+/299aebf56a81ec56601da42c4db26d0e78e030b7

[samuong, 2017-03-24 21:23:13]

samuong@chromium.org changed reviewers:
+ stgao@chromium.org

[stgao, 2017-03-24 21:35:21]

lgtm

[samuong, 2017-03-24 22:23:13]

The CQ bit was checked by samuong@chromium.org

[commit-bot: I haz the power, 2017-03-24 22:23:51]

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, 2017-03-24 23:01:36]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1490394193795030, "parent_rev":
"a3ec3e69fc1ce60ce6b4e2d3e283b3a0f2465f68", "commit_rev":
"299aebf56a81ec56601da42c4db26d0e78e030b7"}

[commit-bot: I haz the power, 2017-03-24 23:06:37]

Description was changed from

==========
[chromedriver] Make tabs visible when switching to windows/tabs.

BUG=chromedriver:1315
==========

to

==========
[chromedriver] Make tabs visible when switching to windows/tabs.

BUG=chromedriver:1315

Review-Url: https://codereview.chromium.org/2751253005
Cr-Commit-Position: refs/heads/master@{#459589}
Committed:
https://chromium.googlesource.com/chromium/src/+/299aebf56a81ec56601da42c4db2...
==========

[commit-bot: I haz the power, 2017-03-24 23:06:38]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/299aebf56a81ec56601da42c4db2...