Mark BookmarksTest#testUploadMovedBookmark as flaky.

BUG=823484
TBR=nyquist@chromium.org

Change-Id: I5f0aac3a43b938ebdc5e6eaae12c21688378e8ef
Reviewed-on: https://chromium-review.googlesource.com/969793Reviewed-by: Karan Bhatia <karandeepb@chromium.org>
Commit-Queue: Karan Bhatia <karandeepb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544237}

chrome/android/sync_shell/javatests/src/org/chromium/chrome/browser/sync/BookmarksTest.java

@@ -18,6 +18,7 @@ import org.junit.runner.RunWith;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.CommandLineFlags;
 import org.chromium.base.test.util.Feature;
+import org.chromium.base.test.util.FlakyTest;
 import org.chromium.chrome.browser.ChromeSwitches;
 import org.chromium.chrome.browser.bookmarks.BookmarkBridge;
 import org.chromium.chrome.browser.profiles.Profile;
@@ -314,6 +315,7 @@ public class BookmarksTest {
     @Test
     @LargeTest
     @Feature({"Sync"})
+    @FlakyTest(message = "crbug.com/823484")
     public void testUploadMovedBookmark() throws Exception {
         // Add the entity to test moving.
         BookmarkId bookmarkId = addClientBookmark(TITLE, URL);