Disable flaky SitePerProcessHitTestBrowserTest.AsynchronousHitTestChildTimeout/0 on ChromeOS

Bug: 833380
Change-Id: Icebd24dbe4514239ae0a627dd97dd9276f18c40d
Tbr: kenrb@chromium.org
NoTry: True
Reviewed-on: https://chromium-review.googlesource.com/1139533Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org>
Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575520}

content/browser/site_per_process_hit_test_browsertest.cc

@@ -1860,10 +1860,18 @@ IN_PROC_BROWSER_TEST_P(SitePerProcessHitTestBrowserTest,
   EXPECT_FALSE(child_frame_monitor.EventWasReceived());
 }
 
+#if defined(OS_CHROMEOS)
+// Flaky on Chrome OS. crbug.com/833380
+#define MAYBE_AsynchronousHitTestChildTimeout \
+  DISABLED_AsynchronousHitTestChildTimeout
+#else
+#define MAYBE_AsynchronousHitTestChildTimeout AsynchronousHitTestChildTimeout
+#endif
+
 // Verify that an event is properly retargeted to the main frame when an
 // asynchronous hit test to the child frame times out.
 IN_PROC_BROWSER_TEST_P(SitePerProcessHitTestBrowserTest,
-                       AsynchronousHitTestChildTimeout) {
+                       MAYBE_AsynchronousHitTestChildTimeout) {
   GURL main_url(embedded_test_server()->GetURL(
       "/frame_tree/page_with_positioned_busy_frame.html"));
   EXPECT_TRUE(NavigateToURL(shell(), main_url));