[Sync] Reset ModelTypeStore's leveldb database after corruption

[Sync] Reset ModelTypeStore's leveldb database after corruption

The issue is that once leveldb database is corrupt it will keep failing
initialization.

I decided to reset database instead of attempting to recover it because recover
doesn't seem to guarantee consistency of data.

R=pnoland@chromium.org
BUG=684774
Review-Url: https://codereview.chromium.org/2682063004
Cr-Commit-Position: refs/heads/master@{#450423}
(cherry picked from commit 323b23d6a1ebe7f3d6ed581b6ef7334c6207460b)

Review-Url: https://codereview.chromium.org/2692993008 .
Cr-Commit-Position: refs/branch-heads/2987@{#531}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed: https://chromium.googlesource.com/chromium/src/+/2e69e04e27c0e5d763bdf30b9cb696d0269dd302

[pavely, 2017-02-15 20:45:47]

Description was changed from

==========
[Sync] Reset ModelTypeStore's leveldb database after corruption

The issue is that once leveldb database is corrupt it will keep failing
initialization.

I decided to reset database instead of attempting to recover it because recover
doesn't seem to guarantee consistency of data.

R=pnoland@chromium.org
BUG=684774

Review-Url: https://codereview.chromium.org/2682063004
Cr-Commit-Position: refs/heads/master@{#450423}
(cherry picked from commit 323b23d6a1ebe7f3d6ed581b6ef7334c6207460b)
==========

to

==========
[Sync] Reset ModelTypeStore's leveldb database after corruption

The issue is that once leveldb database is corrupt it will keep failing
initialization.

I decided to reset database instead of attempting to recover it because recover
doesn't seem to guarantee consistency of data.

R=pnoland@chromium.org
BUG=684774

Review-Url: https://codereview.chromium.org/2682063004
Cr-Commit-Position: refs/heads/master@{#450423}
(cherry picked from commit 323b23d6a1ebe7f3d6ed581b6ef7334c6207460b)

Review-Url: https://codereview.chromium.org/2692993008 .
Cr-Commit-Position: refs/branch-heads/2987@{#531}
Cr-Branched-From:
ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed:
https://chromium.googlesource.com/chromium/src/+/2e69e04e27c0e5d763bdf30b9cb6...
==========

[pavely, 2017-02-15 20:45:48]

Committed patchset #1 (id:1) manually as
2e69e04e27c0e5d763bdf30b9cb696d0269dd302.