Disable failing BookmarkPersonalizedSigninPromoTest tests on Tablets

The tests started failing on Tablet Tester bots (L and M) recently.

BookmarkPersonalizedSigninPromoTest#testSigninButtonDefaultAccount
BookmarkPersonalizedSigninPromoTest#testSigninButtonNewAccount
BookmarkPersonalizedSigninPromoTest#testSigninButtonNotDefaultAccount

BUG=1103210
NOTRY=true
TBR=twellington@chromium.org,aliceywang@chromium.org

Change-Id: I6c1be6beca24985eaa4c018fb4d65eef59a01c8d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2288357Reviewed-by: Tim Volodine <timvolodine@chromium.org>
Commit-Queue: Tim Volodine <timvolodine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#786420}

chrome/android/javatests/src/org/chromium/chrome/browser/bookmarks/BookmarkPersonalizedSigninPromoTest.java

@@ -32,6 +32,7 @@ import org.junit.rules.RuleChain;
 import org.junit.runner.RunWith;
 
 import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.base.test.util.DisableIf;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.flags.ChromeSwitches;
 import org.chromium.chrome.browser.signin.SigninActivityLauncher;
@@ -39,6 +40,7 @@ import org.chromium.chrome.browser.sync.SyncTestRule;
 import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
 import org.chromium.chrome.test.util.BookmarkTestRule;
 import org.chromium.components.signin.metrics.SigninAccessPoint;
+import org.chromium.ui.test.util.UiDisableIf;
 
 /**
  * Tests for the personalized signin promo on the Bookmarks page.
@@ -74,6 +76,7 @@ public class BookmarkPersonalizedSigninPromoTest {
 
     @Test
     @MediumTest
+    @DisableIf.Device(type = {UiDisableIf.TABLET}) // https://crbug.com/1103210
     public void testSigninButtonDefaultAccount() {
         doNothing()
                 .when(SigninActivityLauncher.get())
@@ -88,6 +91,7 @@ public class BookmarkPersonalizedSigninPromoTest {
 
     @Test
     @MediumTest
+    @DisableIf.Device(type = {UiDisableIf.TABLET}) // https://crbug.com/1103210
     public void testSigninButtonNotDefaultAccount() {
         doNothing()
                 .when(SigninActivityLauncher.get())
@@ -102,6 +106,7 @@ public class BookmarkPersonalizedSigninPromoTest {
 
     @Test
     @MediumTest
+    @DisableIf.Device(type = {UiDisableIf.TABLET}) // https://crbug.com/1103210
     public void testSigninButtonNewAccount() {
         doNothing()
                 .when(SigninActivityLauncher.get())