Make mojo/services pass in "gn check"

Make mojo/services pass in "gn check"

This mostly just adds the missing dependency identified by the checker.

In some cases I looked at the target and added public_deps that I thought were appropriate given the nature of the target.

This renames the generated mojo action names to be foo__generator instead of foo_generator since it is not clear from the current name that it is an internally-generated target and I kept trying to use it. The double-underscore matches the Android generated targets.

In a few cases I changed ordering (sources come before deps in GN style) but I didn't want to make the changes difficult to diff so didn't do it for most cases.

Reland of https://codereview.chromium.org/581273003/
TBR=darin

Committed: https://crrev.com/7dab582eb44ec4f5eeb46ea99fee0fd15a80bfdc
Cr-Commit-Position: refs/heads/master@{#295841}

[brettw, 2014-09-19 23:52:05]

brettw@chromium.org changed reviewers:
+ darin@chromium.org

[brettw, 2014-09-19 23:52:31]

Original patch is #1, new one is #2

[brettw, 2014-09-19 23:52:35]

The CQ bit was checked by brettw@chromium.org

[commit-bot: I haz the power, 2014-09-19 23:54:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/591763002/20001

[commit-bot: I haz the power, 2014-09-20 01:44:21]

Committed patchset #2 (id:20001) as fc816dac2bea52090e061064c972da804a7fb2f3

[commit-bot: I haz the power, 2014-09-20 01:44:53]

Committed patchset #2 (id:20001) as b069d753f0bd1198cef3888fa9eed387a16b9069

[commit-bot: I haz the power, 2014-09-20 01:44:57]

Patchset 2 (id:??) landed as
https://crrev.com/7dab582eb44ec4f5eeb46ea99fee0fd15a80bfdc
Cr-Commit-Position: refs/heads/master@{#295841}