Disable flaking ReportRejectedByTriggerManager test on Windows.

See https://crbug.com/1009917

TBR=archanasimha@google.com, vakh@chromium.org
NOTRY=True # Yolo

Bug: 1009917
Change-Id: Id0def6288f9b1386f8dbfc0df0647882be0529a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1831876
Commit-Queue: Henrik Boström <hbos@chromium.org>
Reviewed-by: Henrik Boström <hbos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#701516}

components/safe_browsing/triggers/ad_popup_trigger_unittest.cc

@@ -8,6 +8,7 @@
 #include "base/test/metrics/histogram_tester.h"
 #include "base/test/scoped_feature_list.h"
 #include "base/test/test_simple_task_runner.h"
+#include "build/build_config.h"
 #include "components/prefs/testing_pref_service.h"
 #include "components/safe_browsing/features.h"
 #include "components/safe_browsing/triggers/mock_trigger_manager.h"
@@ -138,7 +139,14 @@ TEST_F(AdPopupTriggerTest, PopupWithAds) {
                                       1);
 }
 
-TEST_F(AdPopupTriggerTest, ReportRejectedByTriggerManager) {
+// TODO(https://crbug.com/1009917): Fix flakes on Windows bots.
+#if defined(OS_WIN)
+#define MAYBE_ReportRejectedByTriggerManager \
+  DISABLED_ReportRejectedByTriggerManager
+#else
+#define MAYBE_ReportRejectedByTriggerManager ReportRejectedByTriggerManager
+#endif
+TEST_F(AdPopupTriggerTest, MAYBE_ReportRejectedByTriggerManager) {
   // If the trigger manager rejects the report, we don't try to finish/send the
   // report.
   CreateTrigger();