[Sync] Disable passwords perf test on Mac/Win

chrome/browser/sync/test/integration/performance/passwords_sync_perf_test.cc

Index: chrome/browser/sync/test/integration/performance/passwords_sync_perf_test.cc
diff --git a/chrome/browser/sync/test/integration/performance/passwords_sync_perf_test.cc b/chrome/browser/sync/test/integration/performance/passwords_sync_perf_test.cc
index 52948b2bf4da1da513200b92825d9f405ecd473f..e865877fb8a8aa74b538daaffe59420c5875c203 100644
--- a/chrome/browser/sync/test/integration/performance/passwords_sync_perf_test.cc
+++ b/chrome/browser/sync/test/integration/performance/passwords_sync_perf_test.cc
@@ -71,9 +71,9 @@ std::string PasswordsSyncPerfTest::NextPassword() {
   return base::StringPrintf("password%d", password_number_++);
 }
 
-// Flaky on Windows, see http://crbug.com/105787
-#if defined(OS_WIN)
-#define MAYBE_P0 FLAKY_P0
+// Flaky on Windows, timing out on Mac, see http://crbug.com/105999
+#if defined(OS_WIN) || defined(OS_MAC)
+#define MAYBE_P0 DISABLED_P0
 #else
 #define MAYBE_P0 P0
 #endif