Aura-Mus: Avoid creating StubSurfaceReferenceFactory's on every surface ID change

Aura-Mus: Avoid creating StubSurfaceReferenceFactory's on every surface ID change

BUG=none

Review-Url: https://codereview.chromium.org/2848273002
Cr-Commit-Position: refs/heads/master@{#468411}
Committed: https://chromium.googlesource.com/chromium/src/+/77654fd14e789bfa365527d2fa0d643aa29f1966

[Fady Samuel, 2017-05-01 17:14:00]

fsamuel@chromium.org changed reviewers:
+ sadrul@chromium.org

[Fady Samuel, 2017-05-01 18:05:45]

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

[commit-bot: I haz the power, 2017-05-01 18:06:18]

Dry run: CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[sadrul, 2017-05-01 19:30:29]

lgtm

[commit-bot: I haz the power, 2017-05-01 21:11:33]

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

[commit-bot: I haz the power, 2017-05-01 21:11:34]

Dry run: This issue passed the CQ dry run.

[Fady Samuel, 2017-05-01 21:12:22]

The CQ bit was checked by fsamuel@chromium.org

[commit-bot: I haz the power, 2017-05-01 21:13:00]

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, 2017-05-01 21:18:21]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1493673142233070, "parent_rev":
"fab679802d701ebcc619a68a41cae62b1f8104db", "commit_rev":
"77654fd14e789bfa365527d2fa0d643aa29f1966"}

[commit-bot: I haz the power, 2017-05-01 21:18:30]

Description was changed from

==========
Aura-Mus: Avoid creating StubSurfaceReferenceFactory's on every surface ID
change

BUG=none
==========

to

==========
Aura-Mus: Avoid creating StubSurfaceReferenceFactory's on every surface ID
change

BUG=none

Review-Url: https://codereview.chromium.org/2848273002
Cr-Commit-Position: refs/heads/master@{#468411}
Committed:
https://chromium.googlesource.com/chromium/src/+/77654fd14e789bfa365527d2fa0d...
==========

[commit-bot: I haz the power, 2017-05-01 21:18:31]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/77654fd14e789bfa365527d2fa0d...