depot_tools: add more hacks to properly find build_internal

depot_tools: add more hacks to properly find build_internal

I acknowledge this is really gross. This allows us to roll the changes into
build_limited in the short term.

Longer term, paths could be passed from outside.

BUG=582074
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=298550

[jochen (gone - plz use gerrit), 2016-02-03 10:43:07]

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

[jochen (gone - plz use gerrit), 2016-02-03 10:43:08]

lgtm

[Paweł Hajdan Jr., 2016-02-03 10:43:23]

The CQ bit was checked by phajdan.jr@chromium.org

[commit-bot: I haz the power, 2016-02-03 10:43:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1665753002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1665753002/1

[commit-bot: I haz the power, 2016-02-03 10:45:32]

Description was changed from

==========
depot_tools: add more hacks to properly find build_internal

I acknowledge this is really gross. This allows us to roll the changes into
build_limited in the short term.

Longer term, paths could be passed from outside.

BUG=582074
==========

to

==========
depot_tools: add more hacks to properly find build_internal

I acknowledge this is really gross. This allows us to roll the changes into
build_limited in the short term.

Longer term, paths could be passed from outside.

BUG=582074

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=298550
==========

[commit-bot: I haz the power, 2016-02-03 10:45:33]

Committed patchset #1 (id:1) as
http://src.chromium.org/viewvc/chrome?view=rev&revision=298550