GN rules for everything in //mojo

GN rules for everything in //mojo

This adds GN rules for everything in mojo except for python bindings
targets and the android packaging rules. The group //mojo builds all
targets in the subdir, just like the gyp 'mojo' target.

R=brettw@chromium.org
TBR=acolwell@chromium.org for //media/build/BUILD.gn

Committed: https://crrev.com/f97b80e7f55057c38a7cf8b7a90acf4ab750d2a6
Cr-Commit-Position: refs/heads/master@{#294788}

[jamesr, 2014-09-12 00:36:43]

Quick, review while it's hot!

[brettw, 2014-09-12 21:40:08]

lgtm

https://codereview.chromium.org/563953003/diff/20001/mojo/examples/png_viewer...
File mojo/examples/png_viewer/BUILD.gn (right):

https://codereview.chromium.org/563953003/diff/20001/mojo/examples/png_viewer...
mojo/examples/png_viewer/BUILD.gn:25: ] + mojo_system_for_shared_library
FWIW I'm not a fan of this and would prefer //mojo:system_shared_library or
somesuch that forwards to the right place.

[jamesr, 2014-09-12 21:41:15]

On 2014/09/12 21:40:08, brettw wrote:
> lgtm
> 
>
https://codereview.chromium.org/563953003/diff/20001/mojo/examples/png_viewer...
> File mojo/examples/png_viewer/BUILD.gn (right):
> 
>
https://codereview.chromium.org/563953003/diff/20001/mojo/examples/png_viewer...
> mojo/examples/png_viewer/BUILD.gn:25: ] + mojo_system_for_shared_library
> FWIW I'm not a fan of this and would prefer //mojo:system_shared_library or
> somesuch that forwards to the right place.

YEah I just copied gyp when I wrote this and had a variable but having a group
that fwds would be better.  Will fix separately.

[jamesr, 2014-09-15 00:51:24]

The CQ bit was checked by jamesr@chromium.org

[commit-bot: I haz the power, 2014-09-15 00:52:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/563953003/40001

[commit-bot: I haz the power, 2014-09-15 01:17:15]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-09-15 01:17:16]

Try jobs failed on following builders:
  android_chromium_gn_compile_rel on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/android_chromiu...)

[jamesr, 2014-09-15 04:03:59]

jamesr@chromium.org changed reviewers:
+ acolwell@chromium.org

[jamesr, 2014-09-15 04:05:06]

TBR'ing acolwell@ for a change to //media/blink/BUILD.gn to match the gyp file
(webmediaplayer_impl.cc should not be compiled in on android). 
webmediaplayer_android will have to move to media/blink or some other location
before we can make media work on android.

[jamesr, 2014-09-15 04:05:12]

The CQ bit was checked by jamesr@chromium.org

[commit-bot: I haz the power, 2014-09-15 04:05:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/563953003/60001

[commit-bot: I haz the power, 2014-09-15 04:09:05]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-09-15 04:09:06]

Try jobs failed on following builders:
  mac_chromium_compile_dbg on tryserver.chromium.mac
(http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_comp...)
  win8_chromium_rel on tryserver.chromium.win
(http://build.chromium.org/p/tryserver.chromium.win/builders/win8_chromium_rel...)

[jamesr, 2014-09-15 05:57:15]

The CQ bit was checked by jamesr@chromium.org

[commit-bot: I haz the power, 2014-09-15 05:57:26]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/563953003/80001

[commit-bot: I haz the power, 2014-09-15 06:54:51]

Committed patchset #5 (id:80001) as 3f6a1a030493699efb888f0a29724d44bb90eaf4

[commit-bot: I haz the power, 2014-09-15 06:57:01]

Patchset 5 (id:??) landed as
https://crrev.com/f97b80e7f55057c38a7cf8b7a90acf4ab750d2a6
Cr-Commit-Position: refs/heads/master@{#294788}