[vim] Check output_dir in ninja-build.vim.

[vim] Check output_dir in ninja-build.vim.

This patch changes ninja-build.vim to check GYP_GENERATOR_FLAGS for
output_dir setting. The function to check the output directory is shared
between YouCompleteMe configuration and ninja-build.vim.

BUG=NONE

Committed: https://crrev.com/d026bc969fce5167b30df795bd4bba4df2a282ee
Cr-Commit-Position: refs/heads/master@{#301871}

[please use gerrit instead, 2014-10-28 03:39:48]

Patchset #4 (id:50001) has been deleted

[please use gerrit instead, 2014-10-28 03:46:53]

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

[please use gerrit instead, 2014-10-28 03:46:54]

thakis@, PTAL Patch Set 5.

[please use gerrit instead, 2014-10-29 16:24:11]

Nico: ping...

[Nico, 2014-10-29 16:46:45]

Sorry, missed this yesterday.

Can you use

  ninja_build = __import__("ninja-build")

in the ycm file, so that you don't have to add another .py file?

[Nico, 2014-10-29 17:01:55]

lgtm

Sorry, I missed that you're extracting this code from a .vim file, not a .py
file (I thought you were moving it out because of the dash in the file name)

[please use gerrit instead, 2014-10-29 17:04:29]

The CQ bit was checked by rouslan@chromium.org

[commit-bot: I haz the power, 2014-10-29 17:04:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/685653002/90001

[commit-bot: I haz the power, 2014-10-29 17:54:11]

Committed patchset #5 (id:90001)

[commit-bot: I haz the power, 2014-10-29 17:54:49]

Patchset 5 (id:??) landed as
https://crrev.com/d026bc969fce5167b30df795bd4bba4df2a282ee
Cr-Commit-Position: refs/heads/master@{#301871}