Revert of Mark UrlManagerTest#testAddUrlGarbageCollectsForSize flaky

chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/UrlManagerTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/UrlManagerTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/UrlManagerTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/UrlManagerTest.java
index f5326fd8b085d79888958ce26be33685a2652c78..db518c57db22f8cfb42f43aa011d8359e84dca3e 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/UrlManagerTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/UrlManagerTest.java
@@ -9,7 +9,6 @@
 import android.test.InstrumentationTestCase;
 
 import org.chromium.base.ContextUtils;
-import org.chromium.base.test.util.DisabledTest
 import org.chromium.base.test.util.FlakyTest;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.test.util.browser.notifications.MockNotificationManagerProxy;
@@ -225,11 +224,8 @@
         assertEquals(0, mMockNotificationManagerProxy.getNotifications().size());
     }
 
-    /*
-     * @SmallTest
-     * Bug=crbug.com/683923
-     */
-    @DisabledTest
+    @SmallTest
+    @RetryOnFailure
     public void testAddUrlGarbageCollectsForSize() throws Exception {
         // Add and remove 101 URLs, making sure one is clearly slightly older than the others.
         addEmptyPwsResult();