🤠 Disable ReaderModeTest#testPreferenceInTab on N-

This test is flaky on test-n-phone. Previously disabled on L-, extending
to be disabled on N-.

BUG=1160911
TBR=wychen@chromium.org

Change-Id: Ieba7ad5ad3e19be68bd4e7d9b5e9058f29457e03
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2601186Reviewed-by: Theresa  <twellington@chromium.org>
Commit-Queue: Theresa  <twellington@chromium.org>
Cr-Commit-Position: refs/heads/master@{#838950}

chrome/android/javatests/src/org/chromium/chrome/browser/dom_distiller/ReaderModeTest.java

@@ -257,9 +257,11 @@ public class ReaderModeTest implements CustomMainActivityStart {
     @Test
     @MediumTest
     @DisableFeatures(ChromeFeatureList.READER_MODE_IN_CCT)
-    @DisableIf.Build(sdk_is_less_than = VERSION_CODES.M,
-            message = "Failing on Lollipop Phone Tester. https://crbug.com/1120830")
-    public void testPreferenceInTab() throws TimeoutException {
+    @DisableIf.Build(sdk_is_less_than = VERSION_CODES.O,
+            message =
+                    "Failing on Lollipop Phone Tester (https://crbug.com/1120830) and test-n-phone (https://crbug.com/1160911)")
+    public void
+    testPreferenceInTab() throws TimeoutException {
         mDownloadTestRule.loadUrl(
                 DomDistillerUrlUtils.getDistillerViewUrlFromUrl(DOM_DISTILLER_SCHEME, mURL, TITLE));