Disable SitePerProcessEmulatedTouchBrowserTest.EmulatedGestureScrollBubbles on Chrome OS

Bug: 833380
Change-Id: Idc4d24382205ba47b23da686b2b607ca3de0c031
Tbr: kenrb@chromium.org
NoTry: True
Reviewed-on: https://chromium-review.googlesource.com/1138415Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org>
Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575382}

content/browser/site_per_process_hit_test_browsertest.cc

@@ -1236,8 +1236,15 @@ IN_PROC_BROWSER_TEST_P(SitePerProcessEmulatedTouchBrowserTest,
   RunTest(PinchGoesToMainFrame);
 }
 
+#if defined(OS_CHROMEOS)
+// Flaky timeouts: https://crbug.com/833380
+#define MAYBE_EmulatedGestureScrollBubbles DISABLED_EmulatedGestureScrollBubbles
+#else
+#define MAYBE_EmulatedGestureScrollBubbles EmulatedGestureScrollBubbles
+#endif
+
 IN_PROC_BROWSER_TEST_P(SitePerProcessEmulatedTouchBrowserTest,
-                       EmulatedGestureScrollBubbles) {
+                       MAYBE_EmulatedGestureScrollBubbles) {
   RunTest(TouchActionBubbling);
 }