Disable flaky BookmarkPersonalizedSigninPromoDismissTests

TBR=aliceywang@chromium.org

Bug: 1020068
Change-Id: I3a32b199482852f197973792d6de3f14f3a93729
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1900468Reviewed-by: Patrick Noland <pnoland@chromium.org>
Commit-Queue: Patrick Noland <pnoland@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712816}

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

@@ -30,6 +30,7 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.base.test.util.FlakyTest;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.ChromeSwitches;
@@ -80,6 +81,7 @@ public class BookmarkPersonalizedSigninPromoTest {
 
     @Test
     @MediumTest
+    @FlakyTest(message = "https://crbug.com/1020069")
     public void testSigninButtonDefaultAccount() {
         doNothing()
                 .when(SigninActivityLauncher.get())
@@ -94,6 +96,7 @@ public class BookmarkPersonalizedSigninPromoTest {
 
     @Test
     @MediumTest
+    @FlakyTest(message = "https://crbug.com/1020069")
     public void testSigninButtonNotDefaultAccount() {
         doNothing()
                 .when(SigninActivityLauncher.get())
@@ -108,6 +111,7 @@ public class BookmarkPersonalizedSigninPromoTest {
 
     @Test
     @MediumTest
+    @FlakyTest(message = "https://crbug.com/1020069")
     public void testSigninButtonNewAccount() {
         doNothing()
                 .when(SigninActivityLauncher.get())