Simplify caller checking logic in WebApkServiceImpl

chrome/test/android/javatests/src/org/chromium/chrome/test/webapk/TestWebApkServiceImplWrapper.java

Index: chrome/test/android/javatests/src/org/chromium/chrome/test/webapk/TestWebApkServiceImplWrapper.java
diff --git a/chrome/test/android/javatests/src/org/chromium/chrome/test/webapk/TestWebApkServiceImplWrapper.java b/chrome/test/android/javatests/src/org/chromium/chrome/test/webapk/TestWebApkServiceImplWrapper.java
new file mode 100644
index 0000000000000000000000000000000000000000..71ae8d2f25ae20683778f070176d0dcdc39506b6
--- /dev/null
+++ b/chrome/test/android/javatests/src/org/chromium/chrome/test/webapk/TestWebApkServiceImplWrapper.java
@@ -0,0 +1,28 @@
+// 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.chrome.test.webapk;
+
+import android.app.Service;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.IBinder;
+
+import org.chromium.webapk.lib.runtime_library.WebApkServiceImpl;
+
+/**
+ * Simple service which uses {@link WebApkServiceImpl} for testing.
+ */
+public class TestWebApkServiceImplWrapper extends Service {
+    @Override
+    public IBinder onBind(Intent intent) {
+        int smallIconId = intent.getIntExtra(WebApkServiceImpl.KEY_SMALL_ICON_ID, -1);
+        int authorizedAppUid = intent.getIntExtra(WebApkServiceImpl.KEY_HOST_BROWSER_UID, -1);
+
+        Bundle bundle = new Bundle();
+        bundle.putInt(WebApkServiceImpl.KEY_SMALL_ICON_ID, smallIconId);
+        bundle.putInt(WebApkServiceImpl.KEY_HOST_BROWSER_UID, authorizedAppUid);
+        return (IBinder) new WebApkServiceImpl(this, bundle);
+    }
+}