sheriff: disable RestrictedTokenTest.OpenLowPrivilegedProcess under asan

This test tickles a heap UAF.

Bug: 1012356
Change-Id: Ia5a46e23d203521e114e71095e6c91a84af36a05
Tbr: brucedawson@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2427405Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#809913}

sandbox/win/src/restricted_token_test.cc

@@ -143,7 +143,14 @@ SBOX_TESTS_COMMAND int RestrictedTokenTest_IsRestricted(int argc,
   return token_groups->GroupCount > 0 ? SBOX_TEST_SUCCEEDED : SBOX_TEST_FAILED;
 }
 
-TEST(RestrictedTokenTest, OpenLowPrivilegedProcess) {
+#if defined(ADDRESS_SANITIZER)
+// Flaky under asan: https://crbug.com/1012356
+#define MAYBE_OpenLowPrivilegedProcess DISABLED_OpenLowPrivilegedProcess
+#else
+#define MAYBE_OpenLowPrivilegedProcess OpenLowPrivilegedProcess
+#endif
+
+TEST(RestrictedTokenTest, MAYBE_OpenLowPrivilegedProcess) {
   // Test limited privilege to renderer open.
   ASSERT_EQ(SBOX_TEST_SUCCEEDED,
             RunOpenProcessTest(false, false, GENERIC_READ | GENERIC_WRITE));