gyp performance: Load detect_host_arch directly.

gyp performance: Load detect_host_arch directly.

We ran "python detect_host_arch.py" ~15 times from gyp. Run
detect_host_arch.py directly from from within gyp for faster execution
and since the path is no longer part of the command, the result will
also be cached more often.

The total gain is at best 0.3 seconds. For most people it will be less.

BUG=362075
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=275361

[Daniel Bratell, 2014-05-26 14:00:20]

Eh, a patch I had forgotten since I did gyp performance fixes. Well... Now it is
at least not forgotten anymore.

[Nico, 2014-05-27 08:28:56]

lgtm

I thought gn used build/linux/detect_host_arch.py , but apparently no longer

https://codereview.chromium.org/256303003/diff/1/build/detect_host_arch.py
File build/detect_host_arch.py (right):

https://codereview.chromium.org/256303003/diff/1/build/detect_host_arch.py#ne...
build/detect_host_arch.py:17: def DoMain(args):
Maybe `DoMain(_):`?

[Daniel Bratell, 2014-06-05 07:11:51]

https://codereview.chromium.org/256303003/diff/1/build/detect_host_arch.py
File build/detect_host_arch.py (right):

https://codereview.chromium.org/256303003/diff/1/build/detect_host_arch.py#ne...
build/detect_host_arch.py:17: def DoMain(args):
On 2014/05/27 08:28:56, Nico (away) wrote:
> Maybe `DoMain(_):`?

Done.

[Daniel Bratell, 2014-06-05 07:11:56]

The CQ bit was checked by bratell@opera.com

[commit-bot: I haz the power, 2014-06-05 07:13:02]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/bratell@opera.com/256303003/40001

[Daniel Bratell, 2014-06-05 08:48:23]

thestig, mithro, can you please take a look at the path change in binutil's
download script.

[Lei Zhang, 2014-06-05 19:08:31]

lgtm

[mithro-old, 2014-06-06 02:00:17]

lgtm

[commit-bot: I haz the power, 2014-06-06 09:56:46]

Change committed as 275361