Disabling flaky NaClBrowserTestPnacl tests

TBR: mseaborn@chromium.org
Bug: 1046044
Change-Id: I65fef5989be8ee468d67bee7c48887ed56af6e85
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2023228Reviewed-by: Joe Downing <joedow@chromium.org>
Commit-Queue: Joe Downing <joedow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#735520}

chrome/test/nacl/nacl_browsertest.cc

@@ -396,15 +396,27 @@ IN_PROC_BROWSER_TEST_F(NaClBrowserTestPnaclSubzero, MAYBE_PnaclErrorHandling) {
   RunNaClIntegrationTest(FILE_PATH_LITERAL("pnacl_error_handling.html"));
 }
 
+#if defined(OS_WIN)
+// TODO(crbug.com/1046044) Test is flaky on Win 7.
+#define MAYBE_PnaclNMFOptionsO0 DISABLED_PnaclNMFOptionsO0
+#else
+#define MAYBE_PnaclNMFOptionsO0 PnaclNMFOptionsO0
+#endif
 IN_PROC_BROWSER_TEST_F(NaClBrowserTestPnacl,
-                       MAYBE_PNACL(PnaclNMFOptionsO0)) {
+                       MAYBE_PNACL(MAYBE_PnaclNMFOptionsO0)) {
   RunLoadTest(FILE_PATH_LITERAL("pnacl_options.html?use_nmf=o_0"));
 }
 
 // Test Subzero. Subzero is triggered by the O0 option so reuse
 // test harnesses that use "optlevel": 0.
+#if defined(OS_WIN)
+// TODO(crbug.com/1046044) Test is flaky on Win 7.
+#define MAYBE_SubZeroPnaclNMFOptionsO0 DISABLED_SubZeroPnaclNMFOptionsO0
+#else
+#define MAYBE_SubZeroPnaclNMFOptionsO0 PnaclNMFOptionsO0
+#endif
 IN_PROC_BROWSER_TEST_F(NaClBrowserTestPnaclSubzero,
-                       MAYBE_PNACL(PnaclNMFOptionsO0)) {
+                       MAYBE_PNACL(MAYBE_SubZeroPnaclNMFOptionsO0)) {
   RunLoadTest(FILE_PATH_LITERAL("pnacl_options.html?use_nmf=o_0"));
 }