[Android] Add option to skip v14 resource verification to GN.

[Android] Add option to skip v14 resource verification to GN.

Added to GYP recently https://codereview.chromium.org/1136953009 .
Adding the same flag to GN.

Also update android_tools' BUILD.gn to use v14_skip

BUG=487391
Committed: https://crrev.com/e5e5dc785e37e50dafea030349ffdd534d2231e3
Cr-Commit-Position: refs/heads/master@{#330199}

[Kibeom Kim (inactive), 2015-05-15 03:23:01]

kkimlabs@chromium.org changed reviewers:
+ aurimas@chromium.org, newt@chromium.org, yfriedman@chromium.org

[Kibeom Kim (inactive), 2015-05-15 03:23:07]

The CQ bit was checked by kkimlabs@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-05-15 03:23:28]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1147483002/1

[Kibeom Kim (inactive), 2015-05-15 03:23:47]

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

[commit-bot: I haz the power, 2015-05-15 03:52:17]

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

[commit-bot: I haz the power, 2015-05-15 03:52:18]

Dry run: This issue passed the CQ dry run.

[Yaron, 2015-05-15 14:16:30]

On 2015/05/15 03:52:18, I haz the power (commit-bot) wrote:
> Dry run: This issue passed the CQ dry run.

lgtm

[Kibeom Kim (inactive), 2015-05-15 14:50:58]

The CQ bit was checked by kkimlabs@chromium.org

[commit-bot: I haz the power, 2015-05-15 14:52:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1147483002/1

[commit-bot: I haz the power, 2015-05-15 14:57:53]

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

[commit-bot: I haz the power, 2015-05-15 14:57:54]

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

[Kibeom Kim (inactive), 2015-05-15 18:38:30]

cjhopman@ ptal

[cjhopman, 2015-05-15 20:42:49]

lgtm

[Kibeom Kim (inactive), 2015-05-15 21:06:06]

The CQ bit was checked by kkimlabs@chromium.org

[commit-bot: I haz the power, 2015-05-15 21:06:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1147483002/1

[commit-bot: I haz the power, 2015-05-15 21:13:49]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-18 11:27:38]

Patchset 1 (id:??) landed as
https://crrev.com/e5e5dc785e37e50dafea030349ffdd534d2231e3
Cr-Commit-Position: refs/heads/master@{#330199}