Clean up the unpack directory for CRLSet component.

Clean up the unpack directory for CRLSet component.

In the current implementation of the component updater, the component
installer owns the unpack path of a component and it is responsible
for deleting the unpack path before the execution flow returns to
the component updater during the update of a component.

For most components, this clean up is done in the implementation of
the DefaultComponentInstaller class. However, CRLSet is one of the few
components which is not reusing the DefaultComponentInstaller for
its component installer. As a result, it is leaking the content of
the unpack path after each update cycle.

It is not clear when this regression has been introduced.

BUG=725671
Review-Url: https://codereview.chromium.org/2906683002
Cr-Original-Commit-Position: refs/heads/master@{#474700}
Review-Url: https://codereview.chromium.org/2909693004 .
Cr-Commit-Position: refs/branch-heads/3071@{#707}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed: https://chromium.googlesource.com/chromium/src/+/5f54ca6de628657215c329dbc6bcf2720aad25dd

[Sorin Jianu, 2017-05-26 21:22:23]

Description was changed from

==========
Clean up the unpack directory for CRLSet component.

In the current implementation of the component updater, the component
installer owns the unpack path of a component and it is responsible
for deleting the unpack path before the execution flow returns to
the component updater during the update of a component.

For most components, this clean up is done in the implementation of
the DefaultComponentInstaller class. However, CRLSet is one of the few
components which is not reusing the DefaultComponentInstaller for
its component installer. As a result, it is leaking the content of
the unpack path after each update cycle.

It is not clear when this regression has been introduced.

BUG=725671

Review-Url: https://codereview.chromium.org/2906683002
Cr-Commit-Position: refs/heads/master@{#474700}
(cherry picked from commit 3ef0c4a62c3bbc2cea73b2821fa6637570c94888)
==========

to

==========
Clean up the unpack directory for CRLSet component.

In the current implementation of the component updater, the component
installer owns the unpack path of a component and it is responsible
for deleting the unpack path before the execution flow returns to
the component updater during the update of a component.

For most components, this clean up is done in the implementation of
the DefaultComponentInstaller class. However, CRLSet is one of the few
components which is not reusing the DefaultComponentInstaller for
its component installer. As a result, it is leaking the content of
the unpack path after each update cycle.

It is not clear when this regression has been introduced.

BUG=725671

Review-Url: https://codereview.chromium.org/2906683002
Cr-Original-Commit-Position: refs/heads/master@{#474700}
Review-Url: https://codereview.chromium.org/2909693004 .
Cr-Commit-Position: refs/branch-heads/3071@{#707}
Cr-Branched-From:
a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed:
https://chromium.googlesource.com/chromium/src/+/5f54ca6de628657215c329dbc6bc...
==========

[Sorin Jianu, 2017-05-26 21:22:26]

Committed patchset #1 (id:1) manually as
5f54ca6de628657215c329dbc6bcf2720aad25dd.