Split mojo_nacl.gyp to fix ARM builds.

Split mojo_nacl.gyp to fix ARM builds.

mojo_nacl.gyp has to be split into two gyp files:
  * One that provides "normal" targets, and
  * one that provides "untrusted" targets.

This is because build/common_untrusted.gypi sets clang=1 for all ARM builds.
For untrusted targets, this is reasonable, but this can break ARM builds of
chrome for normal targets (by passing clang flags to g++).

BUG=445489
Committed: https://crrev.com/39a76697e0fe1769e2ebbcf2c302b02aeedd5ed5
Cr-Commit-Position: refs/heads/master@{#309784}

[teravest, 2014-12-30 18:31:59]

teravest@chromium.org changed reviewers:
+ derat@chromium.org

[Daniel Erat, 2014-12-30 20:29:51]

lgtm

thanks! i'll patch this in to try it out in my chroot

[teravest, 2014-12-30 20:47:39]

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

[teravest, 2014-12-30 20:47:40]

+jamesr for mojo GYP files.

NaCl supporting logic in gyp files is horrible, and
https://chromium.googlesource.com/chromium/src/+/8e2d2b71e51c0022a2ad7b353512...
exposed a latent bug in mojo/mojo_nacl.gyp that's only caught by ChromeOS ARM
builds.

[jamesr, 2014-12-30 20:54:00]

oh my. lgtm

[Daniel Erat, 2014-12-30 21:16:54]

i can confirm that this fixes things for me when building chromeos-chrome for
daisy in my chroot.

[teravest, 2014-12-30 21:17:02]

The CQ bit was checked by teravest@chromium.org

[commit-bot: I haz the power, 2014-12-30 21:18:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/826393003/1

[commit-bot: I haz the power, 2014-12-30 21:24:14]

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

[commit-bot: I haz the power, 2014-12-30 21:24:14]

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

[teravest, 2014-12-30 21:33:47]

teravest@chromium.org changed reviewers:
+ thakis@chromium.org

[teravest, 2014-12-30 21:33:48]

+thakis for build/all.gyp

[Nico, 2014-12-30 21:35:44]

all.gyp rs-lgtm

[teravest, 2014-12-30 21:36:20]

The CQ bit was checked by teravest@chromium.org

[commit-bot: I haz the power, 2014-12-30 21:37:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/826393003/1

[commit-bot: I haz the power, 2014-12-30 22:20:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-30 22:21:02]

Patchset 1 (id:??) landed as
https://crrev.com/39a76697e0fe1769e2ebbcf2c302b02aeedd5ed5
Cr-Commit-Position: refs/heads/master@{#309784}