Disable DemoSetupTest.OnlineSetupFlowSuccessWithCountryCustomization

Disabled on debug builds for flaky timeouts.

TBR=michaelpg

Bug: 1030782
Change-Id: Ib69e47f7c4ff72940de95fe092d2aec8effb62ec
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1951326Reviewed-by: Takumi Fujimoto <takumif@chromium.org>
Commit-Queue: Takumi Fujimoto <takumif@chromium.org>
Cr-Commit-Position: refs/heads/master@{#721632}

chrome/browser/chromeos/login/demo_mode/demo_setup_browsertest.cc

@@ -577,8 +577,16 @@ IN_PROC_BROWSER_TEST_F(DemoSetupTest, OnlineSetupFlowSuccess) {
   EXPECT_TRUE(StartupUtils::IsDeviceRegistered());
 }
 
+// Disabled on debug builds for flakiness. See crbug.com/1030782.
+#if !defined(NDEBUG)
+#define MAYBE_OnlineSetupFlowSuccessWithCountryCustomization \
+  DISABLED_OnlineSetupFlowSuccessWithCountryCustomization
+#else
+#define MAYBE_OnlineSetupFlowSuccessWithCountryCustomization \
+  OnlineSetupFlowSuccessWithCountryCustomization
+#endif
 IN_PROC_BROWSER_TEST_F(DemoSetupTest,
-                       OnlineSetupFlowSuccessWithCountryCustomization) {
+                       MAYBE_OnlineSetupFlowSuccessWithCountryCustomization) {
   // Simulate successful online setup.
   enrollment_helper_.ExpectEnrollmentMode(
       policy::EnrollmentConfig::MODE_ATTESTATION);