Implement the skeleton of an android content shell.

content/shell/android/java/org/chromium/content_shell/ContentShellApplication.java

+// Copyright (c) 2012 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.content_shell;
+
+import android.app.Application;
+
+/**
+ * Entry point for the content shell application.  Handles initialization of information that needs
+ * to be shared across the main activity and the sandbox services created.
+ */
+public class ContentShellApplication extends Application {
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        // TODO(tedchoc): Initialize the .pak files to load and the native library name.
+    }
+
+}