Disable ExtensionBrowserTest.PluginPrivat on chromeos

I should have disabled for chromeos, but not aura.
I probably was confused with other tests I was working on.

BUG=105627
TEST=none


Review URL: http://codereview.chromium.org/8828005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@113322 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/extensions/extension_browsertests_misc.cc

@@ -794,11 +794,11 @@ IN_PROC_BROWSER_TEST_F(ExtensionBrowserTest, MAYBE_PluginLoadUnload) {
   EXPECT_TRUE(result);
 }
 
-#if !defined(USE_AURA) && (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_CHROMEOS))
+#if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
 #define MAYBE_PluginPrivate PluginPrivate
 #else
 // TODO(mpcomplete): http://crbug.com/29900 need cross platform plugin support.
-// crbug.com/105627 for AURA.
+// crbug.com/105627 for chromeos.
 #define MAYBE_PluginPrivate DISABLED_PluginPrivate
 #endif