Disable NaClBrowserTestPnaclSubzero.PnaclErrorHandling on Linux for real

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 8e9413b2865223e4d5aa9a7caf5a64e48ed2653e..17b84403576c39f0c23bef33ab3dca5826d65e4c 100644
--- a/chrome/test/nacl/nacl_browsertest.cc
+++ b/chrome/test/nacl/nacl_browsertest.cc
@@ -390,7 +390,7 @@ IN_PROC_BROWSER_TEST_F(NaClBrowserTestPnacl,
 
 // Test Subzero. Subzero is triggered by the O0 option so reuse
 // test harnesses that use "optlevel": 0.
-IN_PROC_BROWSER_TEST_F(NaClBrowserTestPnaclSubzero, PnaclErrorHandling) {
+IN_PROC_BROWSER_TEST_F(NaClBrowserTestPnaclSubzero, MAYBE_PnaclErrorHandling) {
   RunNaClIntegrationTest(FILE_PATH_LITERAL("pnacl_error_handling.html"));
 }