Disable certain malloc-library tests for OSX 10.9 32-bit.

Disable certain malloc-library tests for OSX 10.9 32-bit.

Chromium's code to enable malloc corruption detection, out-of-memory
termination, and UncheckedMalloc/Calloc under older versions of the OSX malloc
library stopped working under OSX 10.9 (Mavericks).  The 64-bit malloc library
handles corruption detection the way Chromium prefers by default, allowing
everything to work correctly.  Short-circuit the tests which cannot be fixed for
the intersection of 32-bit and OSX >= 10.9.

BUG=383082
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=286917

[Scott Hess - ex-Googler, 2014-07-30 16:28:05]

I did not implement any sort of milestone check to force revisiting this later,
because I could not think of a strong argument around when it would become 100%
right to do, until we start dropping 32-bit support from OSX.

[Mark Mentovai, 2014-07-30 17:36:58]

LGTM. This is fine.

[Scott Hess - ex-Googler, 2014-07-30 17:53:06]

The CQ bit was checked by shess@chromium.org

[commit-bot: I haz the power, 2014-07-30 17:54:40]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/shess@chromium.org/431663002/1

[commit-bot: I haz the power, 2014-07-30 19:30:17]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_dbg_triggered_tests on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/android_dbg_tri...)
  linux_chromium_rel_swarming on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  mac_chromium_rel on tryserver.chromium.mac
(http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel/...)
  win_chromium_rel on tryserver.chromium.win
(http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel/...)
  win_chromium_x64_rel on tryserver.chromium.win
(http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[commit-bot: I haz the power, 2014-07-30 19:55:06]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-07-30 19:55:07]

Try jobs failed on following builders:
  linux_chromium_rel_swarming on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[Scott Hess - ex-Googler, 2014-07-31 19:34:11]

The CQ bit was checked by shess@chromium.org

[commit-bot: I haz the power, 2014-07-31 19:36:40]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/shess@chromium.org/431663002/1

[commit-bot: I haz the power, 2014-07-31 23:57:05]

Change committed as 286917