[Sheriff] Disable flaky test on Mac and Linux

See linked bug for details.

TBR=ellyjones@chromium.org

Bug: 1167249
Change-Id: I97c11cc0eab2c1eba5ed38182befb1bc22d0d7e6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2633350
Commit-Queue: Yi Gu <yigu@chromium.org>
Auto-Submit: Yi Gu <yigu@chromium.org>
Reviewed-by: Fabrice de Gans-Riberi <fdegans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844195}

chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.cc

@@ -2459,8 +2459,9 @@ IN_PROC_BROWSER_TEST_P(
   EXPECT_FALSE(model->IsGroupCollapsed(group));
 }
 
-#if defined(OS_MAC) && defined(ARCH_CPU_ARM64)
+#if defined(OS_MAC) || defined(OS_LINUX)
 // Bulk-disabled for arm64 bot stabilization: https://crbug.com/1154345
+// Test is flaky on Mac and Linux: https://crbug.com/1167249
 #define MAYBE_DragCollapsedGroupHeaderToSeparateWindow \
   DISABLED_DragCollapsedGroupHeaderToSeparateWindow
 #else