[Sheriff] Disable DevToolsAutoOpenerTest.TestAutoOpenForTabs on debug build

See linked bug for details.

TBR=tvanderlippe@chromium.org

Bug: 1167158
Change-Id: Ief155b70c1a8c0ecbc306b71665918416e347315
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2633342Reviewed-by: Anatoliy Potapchuk <apotapchuk@chromium.org>
Commit-Queue: Yi Gu <yigu@chromium.org>
Commit-Queue: Anatoliy Potapchuk <apotapchuk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844091}

chrome/browser/devtools/devtools_sanity_browsertest.cc

@@ -1863,7 +1863,13 @@ class DevToolsAutoOpenerTest : public DevToolsSanityTest {
   std::unique_ptr<DevToolsWindowCreationObserver> observer_;
 };
 
-IN_PROC_BROWSER_TEST_F(DevToolsAutoOpenerTest, TestAutoOpenForTabs) {
+// TODO(https://crbug.com/1167158): Flaky on debug builds.
+#if defined(NDEBUG)
+#define MAYBE_TestAutoOpenForTabs DISABLED_TestAutoOpenForTabs
+#else
+#define MAYBE_TestAutoOpenForTabs TestAutoOpenForTabs
+#endif
+IN_PROC_BROWSER_TEST_F(DevToolsAutoOpenerTest, MAYBE_TestAutoOpenForTabs) {
   {
     DevToolsWindowCreationObserver observer;
     AddTabAtIndexToBrowser(browser(), 0, GURL("about:blank"),