Fix gcc_version.gni to determine target GCC version for MIPSEL Linux.

Fix gcc_version.gni to determine target GCC version for MIPSEL Linux.

This CL modifies gcc_version.gni to set the gcc_version to the target
GCC toolchain version when building for MIPSEL Linux.

BUG=
TEST=Compile 'chrome' target with 'os="linux" cpu_arch="mipsel"'.
     Manually verify that the correct GCC options are used.

Committed: https://crrev.com/3bb044b814399b1584b8bcdedd8e2ffdb102b17d
Cr-Commit-Position: refs/heads/master@{#308334}

[gordanac, 2014-12-11 13:20:12]

gordana.cmiljanovic@imgtec.com changed reviewers:
+ benchan@chromium.org

[gordanac, 2014-12-11 13:20:41]

Please take a look.

[Ben Chan, 2014-12-11 14:58:24]

benchan@chromium.org changed reviewers:
+ brettw@chromium.org

[Ben Chan, 2014-12-11 14:59:05]

On 2014/12/11 13:20:41, gordanac wrote:
> Please take a look.

I'm not the owner.  +brettw for review

[brettw, 2014-12-12 21:53:05]

https://codereview.chromium.org/797593002/diff/1/build/config/gcc/gcc_version...
File build/config/gcc/gcc_version.gni (right):

https://codereview.chromium.org/797593002/diff/1/build/config/gcc/gcc_version...
build/config/gcc/gcc_version.gni:14: # TODO(benchan): Generalize the check for
platforms other than Chrome OS.
Can you remove this TODO?

[brettw, 2014-12-12 21:53:14]

LGTM with that change

[gordanac, 2014-12-15 09:50:11]

https://codereview.chromium.org/797593002/diff/1/build/config/gcc/gcc_version...
File build/config/gcc/gcc_version.gni (right):

https://codereview.chromium.org/797593002/diff/1/build/config/gcc/gcc_version...
build/config/gcc/gcc_version.gni:14: # TODO(benchan): Generalize the check for
platforms other than Chrome OS.
On 2014/12/12 21:53:05, brettw wrote:
> Can you remove this TODO?

Done.

[gordanac, 2014-12-15 09:50:49]

The CQ bit was checked by gordana.cmiljanovic@imgtec.com

[commit-bot: I haz the power, 2014-12-15 09:51:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/797593002/20001

[commit-bot: I haz the power, 2014-12-15 10:32:40]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2014-12-15 10:33:16]

Patchset 2 (id:??) landed as
https://crrev.com/3bb044b814399b1584b8bcdedd8e2ffdb102b17d
Cr-Commit-Position: refs/heads/master@{#308334}