MDM URL Restriction unit test stability fix

Java side. Reduced thread sleep time.

Change-Id: I293ed842d85e3835c1e8aeea6b496d25c092800f
diff --git a/src/com/android/browser/mdm/tests/URLRestrictionsTest.java b/src/com/android/browser/mdm/tests/URLRestrictionsTest.java
index bffd5d5..a818da6 100644
--- a/src/com/android/browser/mdm/tests/URLRestrictionsTest.java
+++ b/src/com/android/browser/mdm/tests/URLRestrictionsTest.java
@@ -33,7 +33,6 @@
 import android.app.Instrumentation;
 import android.os.Bundle;
 import android.test.ActivityInstrumentationTestCase2;
-import android.test.UiThreadTest;
 import android.util.Log;
 
 import com.android.browser.BrowserActivity;
@@ -77,7 +76,7 @@
         // Wait for native to post the result
         while(!URLFilterRestrictionJNI.getInstance().isBlockedResultReady()) {
             try {
-                Thread.sleep(200);
+                Thread.sleep(10);
             } catch (InterruptedException e) {
                 e.printStackTrace();
             }