Make it possible for SkyShell embedders to register services

sky/shell/org/domokit/sky/shell/ServiceFactory.java

Index: sky/shell/org/domokit/sky/shell/ServiceFactory.java
diff --git a/sky/shell/org/domokit/sky/shell/ServiceFactory.java b/sky/shell/org/domokit/sky/shell/ServiceFactory.java
new file mode 100644
index 0000000000000000000000000000000000000000..a2d6cb1e66e72ba990409a5c192f098bf585eea4
--- /dev/null
+++ b/sky/shell/org/domokit/sky/shell/ServiceFactory.java
@@ -0,0 +1,19 @@
+// Copyright 2015 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.domokit.sky.shell;
+
+import android.content.Context;
+
+import org.chromium.mojo.system.Core;
+import org.chromium.mojo.system.MessagePipeHandle;
+
+/**
+ * An interface for creating services. Instances of this interface can be
+ * registered with ServiceRegistry and thereby made available to non-Java
+ * clients.
+ **/
+public interface ServiceFactory {
+    public void connectToService(Context context, Core core, MessagePipeHandle pipe);
+}