[telemetry] Add in entry points to find_dependencies with no arguments.

[telemetry] Add in entry points to find_dependencies with no arguments.

Running modulefinder with just __init__ doesn't include everything, and having
the entry points is more likely to include everything.

BUG=None.
TEST=tools/telemetry/find_dependencies | wc -l  # == 3770, not 3719

Committed: https://crrev.com/1eaed7d18574e33f9713f984cd098cdc5263df20
Cr-Commit-Position: refs/heads/master@{#325352}

[dtu, 2015-04-15 21:43:29]

dtu@chromium.org changed reviewers:
+ aiolos@chromium.org, nednguyen@google.com

[nednguyen, 2015-04-15 21:52:33]

lgtm

[dtu, 2015-04-15 21:53:53]

The CQ bit was checked by dtu@chromium.org

[commit-bot: I haz the power, 2015-04-15 21:55:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1089673002/1

[commit-bot: I haz the power, 2015-04-16 00:02:28]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-16 00:03:20]

Patchset 1 (id:??) landed as
https://crrev.com/1eaed7d18574e33f9713f984cd098cdc5263df20
Cr-Commit-Position: refs/heads/master@{#325352}