Telemetry: Remove the class ProfileCreator.

Telemetry: Remove the class ProfileCreator.

The class is replaced by ProfileExtender, which is functionally equivalent.
Reparent SmallProfileCreator to inherit from FastNavigationProfileExtender,
which cuts out all the deprecated code. This CL breaks ExtensionProfileCreator
on Mac. That class will be fixed in a follow up CL. ExtensionProfileCreator is
already broken on all other OSes, and it's not hooked into any tests.

BUG=

Committed: https://crrev.com/717cb4a9baad20757328c6a6170f2aee729c1263
Cr-Commit-Position: refs/heads/master@{#321454}

[erikchen, 2015-03-19 01:33:18]

erikchen@chromium.org changed reviewers:
+ dtu@chromium.org

[erikchen, 2015-03-19 01:33:18]

dtu: Please review.

[dtu, 2015-03-19 21:36:20]

lgtm

[erikchen, 2015-03-19 21:37:53]

The CQ bit was checked by erikchen@chromium.org

[commit-bot: I haz the power, 2015-03-19 21:38:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1020703002/20001

[commit-bot: I haz the power, 2015-03-19 22:34:33]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-19 22:35:26]

Patchset 2 (id:??) landed as
https://crrev.com/717cb4a9baad20757328c6a6170f2aee729c1263
Cr-Commit-Position: refs/heads/master@{#321454}