[sheriff] Disable flaky TabGridDialogTest test

TabGridDialogTest#testRenderDialog_3Tabs_Landscape__NightModeEnabled is
flaky both on CI bots and on CQ bots.

TBR=yusufo@chromium.org

Bug: 1110099
Change-Id: I8428cc3a585b3e7f2ff5515f699c071defd87298
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2323291Reviewed-by: Alex Ilin <alexilin@chromium.org>
Commit-Queue: Alex Ilin <alexilin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#792289}

chrome/android/features/tab_ui/javatests/src/org/chromium/chrome/browser/tasks/tab_management/TabGridDialogTest.java

@@ -76,6 +76,7 @@ import org.chromium.base.test.params.ParameterAnnotations;
 import org.chromium.base.test.params.ParameterizedRunner;
 import org.chromium.base.test.util.CommandLineFlags;
 import org.chromium.base.test.util.Feature;
+import org.chromium.base.test.util.FlakyTest;
 import org.chromium.base.test.util.Restriction;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.ChromeTabbedActivity;
@@ -662,6 +663,7 @@ public class TabGridDialogTest {
     @Test
     @MediumTest
     @Feature({"RenderTest"})
+    @FlakyTest(message = "https://crbug.com/1110099")
     @ParameterAnnotations.UseMethodParameter(NightModeTestUtils.NightModeParams.class)
     public void testRenderDialog_3Tabs_Landscape(boolean nightModeEnabled) throws Exception {
         final ChromeTabbedActivity cta = mActivityTestRule.getActivity();