[DevTools] Migrate TargetObserver to AnimationModel observer where makes sense.

[DevTools] Migrate TargetObserver to AnimationModel observer where makes sense.

Some observers are not actually interested in targets, but rather all the models.

BUG=none

Review-Url: https://codereview.chromium.org/2674573006
Cr-Commit-Position: refs/heads/master@{#447943}
Committed: https://chromium.googlesource.com/chromium/src/+/3e2c17f370ca181263aa6b6342c8d991f216e62c

[dgozman, 2017-02-03 01:17:15]

dgozman@chromium.org changed reviewers:
+ pfeldman@chromium.org

[dgozman, 2017-02-03 01:17:15]

Take a look please.

[dgozman, 2017-02-03 01:17:19]

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

[commit-bot: I haz the power, 2017-02-03 01:17:57]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[pfeldman, 2017-02-03 01:20:19]

lgtm

[dgozman, 2017-02-03 02:18:45]

The CQ bit was unchecked by dgozman@chromium.org

[dgozman, 2017-02-03 02:18:47]

The CQ bit was checked by dgozman@chromium.org

[commit-bot: I haz the power, 2017-02-03 02:19:01]

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, 2017-02-03 04:52:25]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1486088327971040, "parent_rev":
"f337befaca3a6db9ec08a180cf85a0630aba611c", "commit_rev":
"3e2c17f370ca181263aa6b6342c8d991f216e62c"}

[commit-bot: I haz the power, 2017-02-03 04:52:58]

Description was changed from

==========
[DevTools] Migrate TargetObserver to AnimationModel observer where makes sense.

Some observers are not actually interested in targets, but rather all the
models.

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

to

==========
[DevTools] Migrate TargetObserver to AnimationModel observer where makes sense.

Some observers are not actually interested in targets, but rather all the
models.

BUG=none

Review-Url: https://codereview.chromium.org/2674573006
Cr-Commit-Position: refs/heads/master@{#447943}
Committed:
https://chromium.googlesource.com/chromium/src/+/3e2c17f370ca181263aa6b6342c8...
==========

[commit-bot: I haz the power, 2017-02-03 04:52:59]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/3e2c17f370ca181263aa6b6342c8...