Make it possible to use mojo_variables.gypi at any depth

Make it possible to use mojo_variables.gypi at any depth

Previously, mojo_variables.gypi hard-coded a DEPTH of 1, which meant that only
GYP files that were directly in folders in the root could use it. After this
CL, GYP files at any depth of the tree can use it.

R=jamesr@chromium.org

Committed: https://crrev.com/b568f02e7a37495b6061b35ed8b2ec750a2814e9
Cr-Commit-Position: refs/heads/master@{#294907}

[jamesr, 2014-09-15 15:34:47]

lgtm, but have your considered using GN for your needs instead?

[abarth-chromium, 2014-09-15 20:13:52]

Yes.  Maybe I should switch to gn...

[abarth-chromium, 2014-09-15 20:13:54]

The CQ bit was checked by abarth@chromium.org

[commit-bot: I haz the power, 2014-09-15 20:24:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/561233004/1

[commit-bot: I haz the power, 2014-09-15 22:48:50]

Committed patchset #1 (id:1) as 2aa52e490fdd307242d2ef8ab13213024dc2ae5d

[commit-bot: I haz the power, 2014-09-15 22:50:18]

Patchset 1 (id:??) landed as
https://crrev.com/b568f02e7a37495b6061b35ed8b2ec750a2814e9
Cr-Commit-Position: refs/heads/master@{#294907}