Stop re-adding subviews to keyboard accessory view.

Stop re-adding subviews to keyboard accessory view.

With this CL the subviews are added only once.
Also, this CL enables the experimental keyboard accessory view on iPad, as
described in step 1 of
https://docs.google.com/document/d/1pWfwHEeCNeWgkDjawJiDoEf93gkDV9usINcYDyXvwcY

BUG=735569
Review-Url: https://codereview.chromium.org/2953613002
Cr-Commit-Position: refs/heads/master@{#481397}
Committed: https://chromium.googlesource.com/chromium/src/+/4247d81a3b3dd4f3f697543c7b818ed8669e5cac

[jif-google, 2017-06-21 18:29:55]

Description was changed from

==========
Stop re-adding subviews to keyboard accessory view.

This CL only creates and add the subviews once.
Also, it enables the experimental keyboard accessory view on iPad, as
described in
https://docs.google.com/document/d/1pWfwHEeCNeWgkDjawJiDoEf93gkDV9usINcYDyXvwcY

BUG=735569
==========

to

==========
Stop re-adding subviews to keyboard accessory view.

This CL only creates and add the subviews once.
Also, it enables the experimental keyboard accessory view on iPad, as
described in step 1 of
https://docs.google.com/document/d/1pWfwHEeCNeWgkDjawJiDoEf93gkDV9usINcYDyXvwcY

BUG=735569
==========

[jif, 2017-06-21 18:32:45]

jif@chromium.org changed reviewers:
+ justincohen@chromium.org

[jif, 2017-06-21 18:33:01]

ptal

[jif-google, 2017-06-21 19:55:25]

Description was changed from

==========
Stop re-adding subviews to keyboard accessory view.

This CL only creates and add the subviews once.
Also, it enables the experimental keyboard accessory view on iPad, as
described in step 1 of
https://docs.google.com/document/d/1pWfwHEeCNeWgkDjawJiDoEf93gkDV9usINcYDyXvwcY

BUG=735569
==========

to

==========
Stop re-adding subviews to keyboard accessory view.

With this CL the subviews are added only once.
Also, this CL enables the experimental keyboard accessory view on iPad, as
described in step 1 of
https://docs.google.com/document/d/1pWfwHEeCNeWgkDjawJiDoEf93gkDV9usINcYDyXvwcY

BUG=735569
==========

[justincohen, 2017-06-22 00:03:53]

rs lgtm

[jif, 2017-06-22 01:33:07]

The CQ bit was checked by jif@chromium.org

[commit-bot: I haz the power, 2017-06-22 01:33:19]

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, 2017-06-22 01:45:38]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1498095187659580, "parent_rev":
"fa0c52697c9b7ff5ec40c42672fc57b3b3dcb2f5", "commit_rev":
"4247d81a3b3dd4f3f697543c7b818ed8669e5cac"}

[commit-bot: I haz the power, 2017-06-22 01:45:48]

Description was changed from

==========
Stop re-adding subviews to keyboard accessory view.

With this CL the subviews are added only once.
Also, this CL enables the experimental keyboard accessory view on iPad, as
described in step 1 of
https://docs.google.com/document/d/1pWfwHEeCNeWgkDjawJiDoEf93gkDV9usINcYDyXvwcY

BUG=735569
==========

to

==========
Stop re-adding subviews to keyboard accessory view.

With this CL the subviews are added only once.
Also, this CL enables the experimental keyboard accessory view on iPad, as
described in step 1 of
https://docs.google.com/document/d/1pWfwHEeCNeWgkDjawJiDoEf93gkDV9usINcYDyXvwcY

BUG=735569

Review-Url: https://codereview.chromium.org/2953613002
Cr-Commit-Position: refs/heads/master@{#481397}
Committed:
https://chromium.googlesource.com/chromium/src/+/4247d81a3b3dd4f3f697543c7b81...
==========

[commit-bot: I haz the power, 2017-06-22 01:45:50]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/4247d81a3b3dd4f3f697543c7b81...