Indexed DB: Remove experimental delete-returns-count change

Indexed DB: Remove experimental delete-returns-count change

We implemented an experimental change where IDBObjectStore.delete()
yielded the number of records deleted. Standards discussion converged
on making this opt-in via an option to the method. Back out the change
(and test) until we have further consensus on what the option would
be.

(This was only enabled with the --experimental-... flag.)

BUG=611201, 435727
Committed: https://crrev.com/e0966a9bc1b272bf35987de5d39411b87a90c930
Cr-Commit-Position: refs/heads/master@{#426333}

[jsbell, 2016-10-19 18:38:09]

The CQ bit was checked by jsbell@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-10-19 18:38:39]

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

[jsbell, 2016-10-19 18:39:58]

jsbell@chromium.org changed reviewers:
+ dmurph@chromium.org

[jsbell, 2016-10-19 18:39:59]

dmurph@ - please take a look?

The backing store plumbing is great, so left in. I imagine we'll just plumb a
flag through from the front-end, and can dig the test back up.

[dmurph, 2016-10-19 19:11:49]

lgtm

[dmurph, 2016-10-19 19:11:50]

lgtm

[commit-bot: I haz the power, 2016-10-19 22:33:28]

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

[commit-bot: I haz the power, 2016-10-19 22:33:28]

Dry run: This issue passed the CQ dry run.

[jsbell, 2016-10-19 23:06:53]

The CQ bit was checked by jsbell@chromium.org

[commit-bot: I haz the power, 2016-10-19 23:07:20]

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, 2016-10-19 23:30:10]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-21 13:13:07]

Description was changed from

==========
Indexed DB: Remove experimental delete-returns-count change

We implemented an experimental change where IDBObjectStore.delete()
yielded the number of records deleted. Standards discussion converged
on making this opt-in via an option to the method. Back out the change
(and test) until we have further consensus on what the option would
be.

(This was only enabled with the --experimental-... flag.)

BUG=611201,435727
==========

to

==========
Indexed DB: Remove experimental delete-returns-count change

We implemented an experimental change where IDBObjectStore.delete()
yielded the number of records deleted. Standards discussion converged
on making this opt-in via an option to the method. Back out the change
(and test) until we have further consensus on what the option would
be.

(This was only enabled with the --experimental-... flag.)

BUG=611201,435727

Committed: https://crrev.com/e0966a9bc1b272bf35987de5d39411b87a90c930
Cr-Commit-Position: refs/heads/master@{#426333}
==========

[commit-bot: I haz the power, 2016-10-21 13:13:08]

Patchset 1 (id:??) landed as
https://crrev.com/e0966a9bc1b272bf35987de5d39411b87a90c930
Cr-Commit-Position: refs/heads/master@{#426333}