Get rid of OS(AIX)

Get rid of OS(AIX)

Remove the OS(AIX) macro. This is only used in one source file and it is not an officially supported platform.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=150427

[Julien - ping for review, 2013-05-14 21:15:37]

I don't understand this change (maybe it's me being thick though).

AIX seems to be still developed and the amount of code to maintain is very
minimal so it seems like it's not a huge win either way to remove this code.
Care to clarify a bit?

[abarth-chromium, 2013-05-14 21:17:03]

If we're going to port to AIX, it's likely going to require more than these two
lines of code.  IMHO, we should remove code that we're not compiling.

[kbalazs_, 2013-05-15 09:42:18]

On 2013/05/14 21:17:03, abarth wrote:
> If we're going to port to AIX, it's likely going to require more than these
two
> lines of code.  IMHO, we should remove code that we're not compiling.

Indeed, removing uncompiled code was my motivation. Obviously this is not super
important, just one of my first attempts to contribute into Blink :)
Btw, could you queue it to the try bots? Thanks!

[eseidel, 2013-05-15 09:44:54]

lgtm

[commit-bot: I haz the power, 2013-05-15 09:45:04]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/b.kelemen@sisa.samsung.com/14876030/1

[commit-bot: I haz the power, 2013-05-15 14:20:43]

Change committed as 150427