Disable SyncTest#testRename because it is flaky on CQ.

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

Index: chrome/android/sync_shell/javatests/src/org/chromium/chrome/browser/sync/SyncTest.java
diff --git a/chrome/android/sync_shell/javatests/src/org/chromium/chrome/browser/sync/SyncTest.java b/chrome/android/sync_shell/javatests/src/org/chromium/chrome/browser/sync/SyncTest.java
index 205356329667f0e631b021bb7e8da80144990a47..31ea2d929b7aad9bcea89a8d8d92495f7565b580 100644
--- a/chrome/android/sync_shell/javatests/src/org/chromium/chrome/browser/sync/SyncTest.java
+++ b/chrome/android/sync_shell/javatests/src/org/chromium/chrome/browser/sync/SyncTest.java
@@ -12,6 +12,7 @@ import android.test.suitebuilder.annotation.LargeTest;
 import org.chromium.base.ActivityState;
 import org.chromium.base.ApplicationStatus;
 import org.chromium.base.ThreadUtils;
+import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.signin.AccountIdProvider;
@@ -63,11 +64,12 @@ public class SyncTest extends SyncTestBase {
     }
 
     /*
+     * @FlakyTest
      * @LargeTest
      * @Feature({"Sync"})
-     * BUG = crbug.com/588050
+     * BUG = crbug.com/588050, crbug.com/595893
      */
-    @FlakyTest
+    @DisabledTest
     public void testRename() throws InterruptedException {
         // The two accounts object that would represent the account rename.
         final Account oldAccount = setUpTestAccountAndSignInToSync();