Support Ninja being invoked from MinGW shells

Support Ninja being invoked from MinGW shells

BUG=none
TEST=it works

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=135873

[Ryan Sleevi, 2012-05-08 00:41:07]

scottmg: FYI
nsylvain: OWNERS

[scottmg, 2012-05-08 00:57:12]

On 2012/05/08 00:41:07, Ryan Sleevi wrote:
> scottmg: FYI
> nsylvain: OWNERS

Cool, is that all it needed. shess@ was futzing with some
TERM-something-emacs-something-cygwin-something that I wasn't sure about to get
overprinting working. You might want to ask him if things aren't quite
ship-shape.

[Ryan Sleevi, 2012-05-08 01:02:09]

On 2012/05/08 00:57:12, scottmg wrote:
> On 2012/05/08 00:41:07, Ryan Sleevi wrote:
> > scottmg: FYI
> > nsylvain: OWNERS
> 
> Cool, is that all it needed. shess@ was futzing with some
> TERM-something-emacs-something-cygwin-something that I wasn't sure about to
get
> overprinting working. You might want to ask him if things aren't quite
> ship-shape.

Works great from my msysgit checkout, overprinting and all. No noticeable
deviations from Linux & Mac compiles.

[nsylvain, 2012-05-08 15:38:17]

LGTM from owner

[nsylvain, 2012-05-08 15:38:18]

LGTM from owner

[commit-bot: I haz the power, 2012-05-08 17:59:45]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rsleevi@chromium.org/10310053/1

[commit-bot: I haz the power, 2012-05-08 18:07:53]

Change committed as 135873