Revert of media: Implement MediaDrmStorageImpl with tests

Revert of media: Implement MediaDrmStorageImpl with tests (patchset #4 id:60001 of https://codereview.chromium.org/2791903004/ )

Reason for revert:
This CL causes MediaDrmStorageImplTest failing on chromium.linux/Android Tests:
https://uberchromegw.corp.google.com/i/chromium.linux/builders/Android%20Tests/builds/40330

BUG=709601
Original issue's description:
> media: Implement MediaDrmStorageImpl with tests
>
> Implement MediaDrmStorageImpl using PrefService.
>
> TBR=sdefresne@chromium.org
> BUG=493521
> TEST=New unit tests added.
>
> Review-Url: https://codereview.chromium.org/2791903004
> Cr-Commit-Position: refs/heads/master@{#462929}
> Committed: https://chromium.googlesource.com/chromium/src/+/d0b7b3b7e9f7d4e4c1f8276c5b416eaa05ac9bb0

TBR=yucliu@chromium.org,sdefresne@chromium.org,xhwang@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=493521
Review-Url: https://codereview.chromium.org/2808563002
Cr-Commit-Position: refs/heads/master@{#462988}
Committed: https://chromium.googlesource.com/chromium/src/+/f5fa6d693cae9dfcdb66bdfd70752975c7d9bef4

[Xi Han, 2017-04-07 20:21:35]

The CQ bit was checked by hanxi@chromium.org

[Xi Han, 2017-04-07 20:21:36]

Created Revert of media: Implement MediaDrmStorageImpl with tests

[commit-bot: I haz the power, 2017-04-07 20:22:00]

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, 2017-04-07 20:32:04]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491596495994310, "parent_rev":
"c93b0b625dc7ce7caa2c0b45eb36987990e5ede2", "commit_rev":
"f5fa6d693cae9dfcdb66bdfd70752975c7d9bef4"}

[commit-bot: I haz the power, 2017-04-07 20:33:19]

Description was changed from

==========
Revert of media: Implement MediaDrmStorageImpl with tests (patchset #4 id:60001
of https://codereview.chromium.org/2791903004/ )

Reason for revert:
This CL causes MediaDrmStorageImplTest failing on chromium.linux/Android Tests:
https://uberchromegw.corp.google.com/i/chromium.linux/builders/Android%20Test...

BUG=709601

Original issue's description:
> media: Implement MediaDrmStorageImpl with tests
> 
> Implement MediaDrmStorageImpl using PrefService.
> 
> TBR=sdefresne@chromium.org
> BUG=493521
> TEST=New unit tests added.
> 
> Review-Url: https://codereview.chromium.org/2791903004
> Cr-Commit-Position: refs/heads/master@{#462929}
> Committed:
https://chromium.googlesource.com/chromium/src/+/d0b7b3b7e9f7d4e4c1f8276c5b41...

TBR=yucliu@chromium.org,sdefresne@chromium.org,xhwang@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=493521
==========

to

==========
Revert of media: Implement MediaDrmStorageImpl with tests (patchset #4 id:60001
of https://codereview.chromium.org/2791903004/ )

Reason for revert:
This CL causes MediaDrmStorageImplTest failing on chromium.linux/Android Tests:
https://uberchromegw.corp.google.com/i/chromium.linux/builders/Android%20Test...

BUG=709601

Original issue's description:
> media: Implement MediaDrmStorageImpl with tests
>
> Implement MediaDrmStorageImpl using PrefService.
>
> TBR=sdefresne@chromium.org
> BUG=493521
> TEST=New unit tests added.
>
> Review-Url: https://codereview.chromium.org/2791903004
> Cr-Commit-Position: refs/heads/master@{#462929}
> Committed:
https://chromium.googlesource.com/chromium/src/+/d0b7b3b7e9f7d4e4c1f8276c5b41...

TBR=yucliu@chromium.org,sdefresne@chromium.org,xhwang@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=493521

Review-Url: https://codereview.chromium.org/2808563002
Cr-Commit-Position: refs/heads/master@{#462988}
Committed:
https://chromium.googlesource.com/chromium/src/+/f5fa6d693cae9dfcdb66bdfd7075...
==========

[commit-bot: I haz the power, 2017-04-07 20:33:24]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/f5fa6d693cae9dfcdb66bdfd7075...

[sdefresne, 2017-04-10 09:50:21]

lgtm