Disable SitePerProcessHitTestBrowserTest.TouchpadPinchOverOOPIF/1 and /2

TBR=kenrb@chromium.org

Bug: 853761
Change-Id: I75eb2a580cc263a4dd4b6d3a0254fbadad8ec08e
Reviewed-on: https://chromium-review.googlesource.com/1104657
Commit-Queue: Marc Treib <treib@chromium.org>
Reviewed-by: Marc Treib <treib@chromium.org>
Cr-Commit-Position: refs/heads/master@{#568042}

content/browser/site_per_process_hit_test_browsertest.cc

@@ -3463,6 +3463,12 @@ class TestPageScaleObserver : public WebContentsObserver {
 // the main frame (given that the child did not consume the wheel).
 IN_PROC_BROWSER_TEST_P(SitePerProcessHitTestBrowserTest,
                        TouchpadPinchOverOOPIF) {
+  // TODO(crbug.com/853761): Flaky with viz hit testing
+  if (features::IsVizHitTestingEnabled()) {
+    LOG(INFO) << "Skipping test due to https://crbug.com/853761";
+    return;
+  }
+
   GURL main_url(embedded_test_server()->GetURL(
       "/frame_tree/page_with_positioned_frame.html"));
   EXPECT_TRUE(NavigateToURL(shell(), main_url));