Ensure the OSX crash catcher does not trigger on SIGABRT when disabled.

chrome/test/nacl/nacl_browsertest.cc

Index: chrome/test/nacl/nacl_browsertest.cc
diff --git a/chrome/test/nacl/nacl_browsertest.cc b/chrome/test/nacl/nacl_browsertest.cc
index cfbe37c65fe24b8f7057238e64dcc42c0310805d..377640d460a869e63331c545dd0ac7681169a007 100644
--- a/chrome/test/nacl/nacl_browsertest.cc
+++ b/chrome/test/nacl/nacl_browsertest.cc
@@ -87,9 +87,7 @@ NACL_BROWSER_TEST_F(NaClBrowserTest, ProgressEvents, {
 // allowed.  Also not run on GLibc because it's a large test that is at risk of
 // causing timeouts.
 // crbug/338444
-// crbug.com/375103: fails on Mac after open sourcing PDF plugin.
-// crbug.com/375103: fails on Linux too after open sourcing PDF plugin.

[Mark Seaborn, 2014/06/19 18:28:14]

This issue seems unrelated, since Linux wouldn't be affected by
base/mac/os_crash_dumps.cc.  Not sure if it's safe to re-enable this for Linux.

Any idea what was going on with the PDF plugin?

[Nick Bray (chromium), 2014/06/19 18:38:05]

The only reason open sourcing the PDF plugin affected this test was because
there were two "visual tests" that used a pdf mimetype.  I didn't bother digging
into it because  1) visual tests in an otherwise automated test are stupid and
2) trying to use a mimetype that may already be registered is stupid.  So, with
so much obvious stupid on the table, I saw no real reason to dig into this -
just remove the code in question.

That being said, this test is the best test we have for this bug, and it needed
to be re-enabled.  So yes, it's also being re-enabled for Linux but the reasons
it was disabled were trivial, so it's not a huge leap.

[Mark Seaborn, 2014/06/19 22:14:32]

OK, I see now.  That wasn't obvious from the commit message.  Can you explain
that in the commit message, please?  i.e. Explain why changing ppapi_bad.html
fixes the issue.  Then LGTM.

-#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)
+#if defined(OS_WIN)
 #define MAYBE_Bad DISABLED_Bad
 #else
 #define MAYBE_Bad Bad