Extend unknown_deps for build_configs exemption to android_resources.

Extend unknown_deps for build_configs exemption to android_resources.

Previously only apks were eligible, but both can depend on an
AndroidManifest which doesn't write a build config.

BUG=500587
Committed: https://crrev.com/29d8e3b989cb4938640639ce90de488e5ca90c12
Cr-Commit-Position: refs/heads/master@{#335187}

[Yaron, 2015-06-18 21:58:44]

yfriedman@chromium.org changed reviewers:
+ cjhopman@chromium.org

[Yaron, 2015-06-18 21:58:45]

Don't know if this is the ideal fix but appears to work locally

[Yaron, 2015-06-18 22:11:17]

On 2015/06/18 21:58:45, Yaron wrote:
> Don't know if this is the ideal fix but appears to work locally

hmm. perhaps it makes more sense for the jinja_template to write a build config?

[Dirk Pranke, 2015-06-18 22:12:35]

On 2015/06/18 22:11:17, Yaron wrote:
> On 2015/06/18 21:58:45, Yaron wrote:
> > Don't know if this is the ideal fix but appears to work locally
> 
> hmm. perhaps it makes more sense for the jinja_template to write a build
config?

I thought about that but when I attempted to do so I got other weird errors. I
think that might be the
right answer but I didn't know how to write the build config properly.

[cjhopman, 2015-06-18 22:46:17]

On 2015/06/18 22:12:35, Dirk Pranke wrote:
> On 2015/06/18 22:11:17, Yaron wrote:
> > On 2015/06/18 21:58:45, Yaron wrote:
> > > Don't know if this is the ideal fix but appears to work locally
> > 
> > hmm. perhaps it makes more sense for the jinja_template to write a build
> config?
> 
> I thought about that but when I attempted to do so I got other weird errors. I
> think that might be the
> right answer but I didn't know how to write the build config properly.

lgtm. This is the right fix.

We may have to just remove the check for unknown_deps entirely after brettw@'s
changes. The unknown_deps check was written under the assumption that for these
target types, there was no reason to have a dep that write_build_config.py
didn't do something with. Any such dep doesn't actually have any effect on how
the target is built. brettw@ has now changed it so that sometimes you are
required to specify a dep that doesn't have an effect on the build.

[Dirk Pranke, 2015-06-18 22:49:44]

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

[Dirk Pranke, 2015-06-18 22:49:44]

(I fixed a couple typos in the CL subject and description).

[Dirk Pranke, 2015-06-18 22:50:00]

The CQ bit was checked by dpranke@chromium.org

[commit-bot: I haz the power, 2015-06-18 22:51:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1181613005/1

[commit-bot: I haz the power, 2015-06-19 01:19:51]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-19 01:20:46]

Patchset 1 (id:??) landed as
https://crrev.com/29d8e3b989cb4938640639ce90de488e5ca90c12
Cr-Commit-Position: refs/heads/master@{#335187}