Disable PDFBrowserTest.Basic on Mac, as it's consistently failing on Mac Chrome release builder

BUG=142531
TBR=karen


Review URL: https://chromiumcodereview.appspot.com/10836232

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151491 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/pdf/pdf_browsertest.cc

@@ -200,6 +200,9 @@ class PDFBrowserTest : public InProcessBrowserTest,
 #if defined(OS_CHROMEOS)
 // TODO(sanjeevr): http://crbug.com/79837
 #define MAYBE_Basic DISABLED_Basic
+#elif defined(OS_MACOSX)
+// Fails on release builder for Mac: http://crbug.com/142531
+#define MAYBE_Basic DISABLED_Basic
 #else
 #define MAYBE_Basic Basic
 #endif