Disable failing test #testStartUp_ChromeNTP_BottomToolbar

TBR=chouinard@chromium.org

Bug: 1051213
Change-Id: Id2b6c0d8929e5eb09d9a7a063d216ea324e1b540
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2051288Reviewed-by: Brandon Wylie <wylieb@chromium.org>
Commit-Queue: Brandon Wylie <wylieb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#740468}

chrome/android/javatests/src/org/chromium/chrome/browser/settings/homepage/HomepageSettingsFragmentTest.java

@@ -174,6 +174,7 @@ public class HomepageSettingsFragmentTest {
     @SmallTest
     @Feature({"Homepage"})
     @Restriction(UiRestriction.RESTRICTION_TYPE_PHONE)
+    @DisabledTest(message = "crbug.com/1051213")
     public void testStartUp_ChromeNTP_BottomToolbar() {
         mHomepageTestRule.useCustomizedHomepageForTest(TEST_URL_BAR);
         mHomepageTestRule.useChromeNTPForTest();