Add test to ensure shouldOverrideUrlLoading throws Java exception

android_webview/test/shell/src/org/chromium/android_webview/test/ServiceTestRunner.java

Index: android_webview/test/shell/src/org/chromium/android_webview/test/ServiceTestRunner.java
diff --git a/android_webview/test/shell/src/org/chromium/android_webview/test/ServiceTestRunner.java b/android_webview/test/shell/src/org/chromium/android_webview/test/ServiceTestRunner.java
new file mode 100644
index 0000000000000000000000000000000000000000..6cbe1838d60271002b10242334beb21bb5c70a90
--- /dev/null
+++ b/android_webview/test/shell/src/org/chromium/android_webview/test/ServiceTestRunner.java
@@ -0,0 +1,30 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.android_webview.test;
+
+import android.app.Service;
+import android.os.Messenger;
+
+import java.io.Serializable;
+
+/**
+ * Class for running code in a separate Service.
+ * This class is Serializable so that it can't be passed through IPC from a test process to a

[boliu, 2016/09/15 04:57:53]

"can't" or can?

[gsennton, 2016/09/15 10:02:04]

Can :P

+ * service in a separate process.
+ */
+public abstract class ServiceTestRunner implements Serializable {

[boliu, 2016/09/15 04:57:53]

interface?

+    /**
+     * Override this method to run code in a separate Service.
+     *
+     * OBS! Any child-classes of this class must be defined in the same apk where
+     * SeparateProcessWebViewService is defined - otherwise the Service won't be able to initiate an
+     * instance of that class.
+     *
+     * This method must send a message back to the test-code through the use of the Messenger
+     * testMessenger - the test will block indefinitely waiting for a message.
+     * service is a reference to the Service within which this code will be run.
+     */
+    public abstract void runTestOnMainThread(Messenger testMessenger, Service service);
+}