[NTP::Downloads] Use last access time to filter old asset downloads.

[NTP::Downloads] Use last access time to filter old asset downloads.

Previously, last_access_time was not provided in DownloadItem. Now it
is, so in this CL we use it to filter out outdaded asset downloads (same
way as it was done for offline pages - either creation time or last
access time (if ever opened) is considered).

BUG=689965
Review-Url: https://codereview.chromium.org/2787303002
Cr-Commit-Position: refs/heads/master@{#461671}
Committed: https://chromium.googlesource.com/chromium/src/+/cdc707f2ed4d9fa302d5c81259ac67618d6c2b56

[vitaliii, 2017-03-31 06:30:35]

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

[commit-bot: I haz the power, 2017-03-31 06:30:58]

Dry run: 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, 2017-03-31 06:33:17]

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

[commit-bot: I haz the power, 2017-03-31 06:33:19]

Dry run: Try jobs failed on following builders:
  ios-simulator on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios-simulator/bui...)

[vitaliii, 2017-03-31 11:25:38]

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

[commit-bot: I haz the power, 2017-03-31 11:25:53]

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

[vitaliii, 2017-03-31 11:28:27]

vitaliii@chromium.org changed reviewers:
+ jkrcal@chromium.org, phajdan.jr@chromium.org

[vitaliii, 2017-03-31 11:28:28]

Hi phajdan.jr@ and jkrcal@,

phajdan.jr, could you have a look at public/test?

jkrcal, could you have a look at ntp_snippets?

[jkrcal, 2017-03-31 11:49:56]

lgtm

[commit-bot: I haz the power, 2017-03-31 12:58:54]

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

[commit-bot: I haz the power, 2017-03-31 12:58:55]

Dry run: Try jobs failed on following builders:
  linux_chromium_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[vitaliii, 2017-04-03 07:24:42]

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

[commit-bot: I haz the power, 2017-04-03 07:24:57]

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

[vitaliii, 2017-04-03 07:38:47]

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

[commit-bot: I haz the power, 2017-04-03 07:38:59]

Dry run: 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, 2017-04-03 09:07:04]

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

[commit-bot: I haz the power, 2017-04-03 09:07:05]

Dry run: This issue passed the CQ dry run.

[Paweł Hajdan Jr., 2017-04-03 20:03:25]

LGTM

[vitaliii, 2017-04-04 08:04:43]

The CQ bit was checked by vitaliii@chromium.org

[vitaliii, 2017-04-04 08:04:44]

The patchset sent to the CQ was uploaded after l-g-t-m from jkrcal@chromium.org
Link to the patchset: https://codereview.chromium.org/2787303002/#ps40001
(title: "clean rebase.")

[commit-bot: I haz the power, 2017-04-04 08:04:55]

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, 2017-04-04 09:58:16]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1491293083952690,
"parent_rev": "bc1653a4f1a74aba2540fd0f59298d1c2c6601c5", "commit_rev":
"cdc707f2ed4d9fa302d5c81259ac67618d6c2b56"}

[commit-bot: I haz the power, 2017-04-04 09:59:00]

Description was changed from

==========
[NTP::Downloads] Use last access time to filter old asset downloads.

Previously, last_access_time was not provided in DownloadItem. Now it
is, so in this CL we use it to filter out outdaded asset downloads (same
way as it was done for offline pages - either creation time or last
access time (if ever opened) is considered).

BUG=689965
==========

to

==========
[NTP::Downloads] Use last access time to filter old asset downloads.

Previously, last_access_time was not provided in DownloadItem. Now it
is, so in this CL we use it to filter out outdaded asset downloads (same
way as it was done for offline pages - either creation time or last
access time (if ever opened) is considered).

BUG=689965

Review-Url: https://codereview.chromium.org/2787303002
Cr-Commit-Position: refs/heads/master@{#461671}
Committed:
https://chromium.googlesource.com/chromium/src/+/cdc707f2ed4d9fa302d5c81259ac...
==========

[commit-bot: I haz the power, 2017-04-04 09:59:01]

Committed patchset #3 (id:40001) as
https://chromium.googlesource.com/chromium/src/+/cdc707f2ed4d9fa302d5c81259ac...