WebUSB: Remove guid property from USBDevice.

WebUSB: Remove guid property from USBDevice.

The guid property has been removed from the specification and should
never have been exposed to the web to begin with because while it is not
stable between device connections it is the same across separate
execution contexts.

Since the guid property has been removed USBDevice instances must now
be cached so that scripts can compare them for equality.

BUG=None

Committed: https://crrev.com/6868e2b9440a4d4000b8bfa7e8399ac340c35891
Cr-Commit-Position: refs/heads/master@{#395238}

[Reilly Grant (use Gerrit), 2016-05-10 22:04:08]

Update webexposed.

[Reilly Grant (use Gerrit), 2016-05-19 21:58:31]

reillyg@chromium.org changed reviewers:
+ scheib@chromium.org

[Reilly Grant (use Gerrit), 2016-05-19 21:58:31]

reillyg@chromium.org changed reviewers:
+ scheib@chromium.org

[scheib, 2016-05-20 18:19:51]

LGTM but update the change description for the other changes as well.

[Reilly Grant (use Gerrit), 2016-05-20 19:29:37]

Description was changed from

==========
WebUSB: Remove guid property from USBDevice.

The guid property has been removed from the specification and should
never have been exposed to the web to begin with because while it is not
stable between device connections it is the same across separate
execution contexts.

BUG=None
==========

to

==========
WebUSB: Remove guid property from USBDevice.

The guid property has been removed from the specification and should
never have been exposed to the web to begin with because while it is not
stable between device connections it is the same across separate
execution contexts.

Since the guid property has been removed USBDevice instances must now
be cached so that scripts can compare them for equality.

BUG=None
==========

[Reilly Grant (use Gerrit), 2016-05-20 19:30:02]

The CQ bit was checked by reillyg@chromium.org

[commit-bot: I haz the power, 2016-05-20 19:30:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1963183003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1963183003/20001

[commit-bot: I haz the power, 2016-05-20 23:15:37]

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

[commit-bot: I haz the power, 2016-05-20 23:15:37]

Try jobs failed on following builders:
  win_chromium_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[Reilly Grant (use Gerrit), 2016-05-20 23:17:36]

The CQ bit was checked by reillyg@chromium.org

[commit-bot: I haz the power, 2016-05-20 23:18:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1963183003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1963183003/20001

[commit-bot: I haz the power, 2016-05-21 03:06:46]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-05-21 03:08:12]

Description was changed from

==========
WebUSB: Remove guid property from USBDevice.

The guid property has been removed from the specification and should
never have been exposed to the web to begin with because while it is not
stable between device connections it is the same across separate
execution contexts.

Since the guid property has been removed USBDevice instances must now
be cached so that scripts can compare them for equality.

BUG=None
==========

to

==========
WebUSB: Remove guid property from USBDevice.

The guid property has been removed from the specification and should
never have been exposed to the web to begin with because while it is not
stable between device connections it is the same across separate
execution contexts.

Since the guid property has been removed USBDevice instances must now
be cached so that scripts can compare them for equality.

BUG=None

Committed: https://crrev.com/6868e2b9440a4d4000b8bfa7e8399ac340c35891
Cr-Commit-Position: refs/heads/master@{#395238}
==========

[commit-bot: I haz the power, 2016-05-21 03:08:13]

Patchset 2 (id:??) landed as
https://crrev.com/6868e2b9440a4d4000b8bfa7e8399ac340c35891
Cr-Commit-Position: refs/heads/master@{#395238}

[haraken, 2016-05-21 03:14:32]

Oilpan part LGTM