predictors: Remove unknown fields from PrecacheManifest before store it.

predictors: Remove unknown fields from PrecacheManifest before store it.

PrecacheManifest comes to ResourcePrefetchPredictor from an external source that
could have a different protobuf definition. The definition could contain fields
that are unknown for the current version of Chromium. During deserialization,
unknown fields are not discarded but stored in unknown_fields.

The database has to be wiped out after update of the .proto file so there
is no need to store unknown fields.

BUG=699115
Review-Url: https://codereview.chromium.org/2790633002
Cr-Commit-Position: refs/heads/master@{#461668}
Committed: https://chromium.googlesource.com/chromium/src/+/0559ee094eaf06da395d78b81cae19352ac68f9c

[alexilin, 2017-03-30 14:25:54]

alexilin@chromium.org changed reviewers:
+ lizeb@chromium.org

[alexilin, 2017-03-30 14:25:55]

Hi lizeb! Review my change, please.

[alexilin, 2017-03-30 14:33:46]

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

[commit-bot: I haz the power, 2017-03-30 14:33:59]

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, 2017-03-30 15:50:20]

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

[commit-bot: I haz the power, 2017-03-30 15:50:21]

Dry run: This issue passed the CQ dry run.

[Benoit L, 2017-03-31 08:32:31]

On 2017/03/30 14:25:55, alexilin wrote:
> Hi lizeb! Review my change, please.

lgtm, thanks.

[alexilin, 2017-04-04 08:52:11]

The CQ bit was checked by alexilin@chromium.org

[commit-bot: I haz the power, 2017-04-04 08:52:21]

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 09:38:02]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1491295931499560,
"parent_rev": "728c5027f96edd1203c61c7683a419288830f7a6", "commit_rev":
"0559ee094eaf06da395d78b81cae19352ac68f9c"}

[commit-bot: I haz the power, 2017-04-04 09:38:49]

Description was changed from

==========
predictors: Remove unknown fields from PrecacheManifest before store it.

PrecacheManifest comes to ResourcePrefetchPredictor from an external source that
could have a different protobuf definition. The definition could contain fields
that are unknown for the current version of Chromium. During deserialization,
unknown fields are not discarded but stored in unknown_fields.

The database has to be wiped out after update of the .proto file so there
is no need to store unknown fields.

BUG=699115
==========

to

==========
predictors: Remove unknown fields from PrecacheManifest before store it.

PrecacheManifest comes to ResourcePrefetchPredictor from an external source that
could have a different protobuf definition. The definition could contain fields
that are unknown for the current version of Chromium. During deserialization,
unknown fields are not discarded but stored in unknown_fields.

The database has to be wiped out after update of the .proto file so there
is no need to store unknown fields.

BUG=699115

Review-Url: https://codereview.chromium.org/2790633002
Cr-Commit-Position: refs/heads/master@{#461668}
Committed:
https://chromium.googlesource.com/chromium/src/+/0559ee094eaf06da395d78b81cae...
==========

[commit-bot: I haz the power, 2017-04-04 09:38:50]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/0559ee094eaf06da395d78b81cae...