Changing the delay time from 250ms to 3000ms, because avoiding a race condition in testOnReceivedIcon.

Change-Id: I3bd5595cdb5c2f96794383382ebfe4231f878243
diff --git a/tests/tests/webkit/src/android/webkit/cts/WebChromeClientTest.java b/tests/tests/webkit/src/android/webkit/cts/WebChromeClientTest.java
index b95f9c2..795ed61 100644
--- a/tests/tests/webkit/src/android/webkit/cts/WebChromeClientTest.java
+++ b/tests/tests/webkit/src/android/webkit/cts/WebChromeClientTest.java
@@ -126,7 +126,7 @@
         WebIconDatabase mIconDb = WebIconDatabase.getInstance();
         String dbPath = getActivity().getFilesDir().toString() + "/icons";
         mIconDb.open(dbPath);
-        Thread.sleep(250);
+        Thread.sleep(3000);
         mIconDb.removeAllIcons();
 
         assertFalse(webChromeClient.hadOnReceivedIcon());