Fix OS_IOS definition

Fix OS_IOS definition

TARGET_OS_IOS is always defined, either to 1 or 0, so defined() isn't the right check.

BUG=None
TEST=None


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=145148

[qsr, 2012-07-02 10:11:02]

lgtm

[commit-bot: I haz the power, 2012-07-02 10:12:44]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a lowly provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[stuartmorgan, 2012-07-02 10:16:17]

Whoops, didn't realize qsr never got the full commit bit. Rohit, can you take
this?

[rohitrao (ping after 24h), 2012-07-02 12:30:42]

lgtm

[commit-bot: I haz the power, 2012-07-02 12:31:19]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/stuartmorgan@chromium.org/10697053/1

[commit-bot: I haz the power, 2012-07-02 13:44:11]

Try job failure for 10697053-1 (retry) on linux_rel for step
"interactive_ui_tests".
It's a second try, previously, step "interactive_ui_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_rel&...

[commit-bot: I haz the power, 2012-07-02 13:45:22]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/stuartmorgan@chromium.org/10697053/1

[commit-bot: I haz the power, 2012-07-02 15:28:14]

Change committed as 145148