Removed project_bases from Chromium

Removed project_bases from Chromium

They are not needed since Chromium has been moved to Git and no relpath needs to
be computed anymore.

R=akuegel@chromium.org
BUG=471767
Committed: https://crrev.com/1c43746da3ac108197c7ab645b366e730d9e45d6
Cr-Commit-Position: refs/heads/master@{#330526}

[Adrian Kuegel, 2015-05-19 12:52:42]

akuegel@chromium.org changed reviewers:
+ akuegel@chromium.org

[Adrian Kuegel, 2015-05-19 12:52:42]

lgtm

[Sergiy Byelozyorov, 2015-05-19 12:53:20]

sergiyb@chromium.org changed reviewers:
- akuegel@google.com

[Sergiy Byelozyorov, 2015-05-19 13:54:38]

The CQ bit was checked by sergiyb@chromium.org

[commit-bot: I haz the power, 2015-05-19 13:54:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1141383003/1

[Sergiy Byelozyorov, 2015-05-19 14:00:31]

The CQ bit was unchecked by sergiyb@chromium.org

[Sergiy Byelozyorov, 2015-05-19 14:17:58]

The CQ bit was checked by sergiyb@chromium.org

[commit-bot: I haz the power, 2015-05-19 14:18:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1141383003/1

[Sergiy Byelozyorov, 2015-05-19 14:20:13]

The CQ bit was unchecked by sergiyb@chromium.org

[Sergiy Byelozyorov, 2015-05-19 14:20:14]

The CQ bit was checked by sergiyb@chromium.org

[Sergiy Byelozyorov, 2015-05-19 14:20:23]

The CQ bit was unchecked by sergiyb@chromium.org

[Sergiy Byelozyorov, 2015-05-19 14:25:41]

The CQ bit was checked by sergiyb@chromium.org

[commit-bot: I haz the power, 2015-05-19 14:25:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1141383003/1

[commit-bot: I haz the power, 2015-05-19 17:02:00]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-19 17:03:41]

Patchset 1 (id:??) landed as
https://crrev.com/1c43746da3ac108197c7ab645b366e730d9e45d6
Cr-Commit-Position: refs/heads/master@{#330526}