Add parameter to set source directories in repack locale.

Add parameter to set source directories in repack locale.

This allow to pass different values for the shared and output directories.

The value of the parameter is put in the same string as the parameter switch as putting them in separated string results in the deletion of the parameter value.

Committed: https://crrev.com/7ddc6d4903f0ea4259a2c2a79890d3ebc07c1283
Cr-Commit-Position: refs/heads/master@{#316494}

[Olivier, 2015-02-16 16:41:15]

olivierrobin@chromium.org changed reviewers:
+ sdefresne@chromium.org

[sdefresne, 2015-02-16 16:44:47]

lgtm

[Olivier, 2015-02-16 16:47:00]

The CQ bit was checked by olivierrobin@chromium.org

[commit-bot: I haz the power, 2015-02-16 16:47:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/930923002/20001

[commit-bot: I haz the power, 2015-02-16 17:34:14]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-02-16 17:37:06]

Patchset 2 (id:??) landed as
https://crrev.com/7ddc6d4903f0ea4259a2c2a79890d3ebc07c1283
Cr-Commit-Position: refs/heads/master@{#316494}