Revert of Disable flaky testWebAppSplashscreenIsDownloaded test.

chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java
index 175b3f0b2a97e4bf59bcdf83d4f526930105b08e..ececf5c325c18d1d42e37766ec73febe9a044887 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java
@@ -21,7 +21,6 @@
 import android.widget.TextView;
 
 import org.chromium.base.ThreadUtils;
-import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.R;
@@ -475,10 +474,9 @@
                 WEB_APP_SHORT_TITLE);
     }
 
-    /*@SmallTest
-    @Feature({"AppBanners"})
-    @RetryOnFailure*/
-    @DisabledTest(message = "http://crbug.com/660237")
+    @SmallTest
+    @Feature({"AppBanners"})
+    @RetryOnFailure
     public void testWebAppSplashscreenIsDownloaded() throws Exception {
         // Sets the overriden factory to observer splash screen update.
         final TestDataStorageFactory dataStorageFactory = new TestDataStorageFactory();