Oilpan: simplify quota storage callbacks objects.

Oilpan: simplify quota storage callbacks objects.

With callback objects now being on the heap by default, we can simplify
the objects wrapping storage callbacks.

R=haraken
BUG=340522
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=184420

[sof, 2014-10-25 15:24:07]

sigbjornf@opera.com changed reviewers:
+ oilpan-reviews@chromium.org

[sof, 2014-10-25 15:24:08]

Please take a look.

Given that quota/ ships with Oilpan, it makes sense to reduce the complexity
here. (i.e., not intended as a CL that default-enables Oilpan more fully,
something that is currently not a priority.)

[haraken, 2014-10-26 15:22:18]

LGTM

[sof, 2014-10-26 18:34:42]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2014-10-26 18:35:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/676183002/1

[commit-bot: I haz the power, 2014-10-26 18:40:22]

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

[commit-bot: I haz the power, 2014-10-26 18:40:24]

Try jobs failed on following builders:
  blink_presubmit on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/blink_presubmit/builds/1...)

[sof, 2014-10-26 23:13:30]

On 2014/10/26 18:40:24, I haz the power (commit-bot) wrote:
> Try jobs failed on following builders:
>   blink_presubmit on tryserver.blink
>
(http://build.chromium.org/p/tryserver.blink/builders/blink_presubmit/builds/1...)

Needs public/platform approval.

tkent: when you next have some time, could you have a look, please? tia.

[tkent, 2014-10-27 02:01:07]

tkent@chromium.org changed reviewers:
+ tkent@chromium.org

[tkent, 2014-10-27 02:01:07]

The CQ bit was checked by tkent@chromium.org

[tkent, 2014-10-27 02:01:07]

lgtm

[commit-bot: I haz the power, 2014-10-27 02:02:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/676183002/1

[commit-bot: I haz the power, 2014-10-27 02:06:00]

Committed patchset #1 (id:1) as 184420