Reduce memory usage in DelayedPersistentAllocation.

Reduce memory usage in DelayedPersistentAllocation.

The PMA is limited to 32-bit values so it's known that |size| and
|offset| can't exceed that.  No need to waste space on 64-bit builds.

BUG=733380
Review-Url: https://codereview.chromium.org/2970883002
Cr-Commit-Position: refs/heads/master@{#484158}
Committed: https://chromium.googlesource.com/chromium/src/+/4e72a1554a6b4efb3ea711ead4876f0f3e276e45

[bcwhite, 2017-07-04 19:55:33]

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

[commit-bot: I haz the power, 2017-07-04 19:55:46]

Dry run: CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[bcwhite, 2017-07-04 20:12:09]

bcwhite@chromium.org changed reviewers:
+ asvitkine@chromium.org

[Alexei Svitkine (slow), 2017-07-04 20:13:23]

lgtm

[bcwhite, 2017-07-04 20:14:43]

The CQ bit was unchecked by bcwhite@chromium.org

[bcwhite, 2017-07-04 20:14:47]

The CQ bit was checked by bcwhite@chromium.org

[commit-bot: I haz the power, 2017-07-04 20:14:56]

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, 2017-07-04 21:13:17]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1499199287116040, "parent_rev":
"7c75487d4702daeff63df2bd7f4a288052cd054c", "commit_rev":
"4e72a1554a6b4efb3ea711ead4876f0f3e276e45"}

[commit-bot: I haz the power, 2017-07-04 21:13:37]

Description was changed from

==========
Reduce memory usage in DelayedPersistentAllocation.

The PMA is limited to 32-bit values so it's known that |size| and
|offset| can't exceed that.  No need to waste space on 64-bit builds.

BUG=733380
==========

to

==========
Reduce memory usage in DelayedPersistentAllocation.

The PMA is limited to 32-bit values so it's known that |size| and
|offset| can't exceed that.  No need to waste space on 64-bit builds.

BUG=733380

Review-Url: https://codereview.chromium.org/2970883002
Cr-Commit-Position: refs/heads/master@{#484158}
Committed:
https://chromium.googlesource.com/chromium/src/+/4e72a1554a6b4efb3ea711ead487...
==========

[commit-bot: I haz the power, 2017-07-04 21:13:37]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/4e72a1554a6b4efb3ea711ead487...