Restructuring the sample plugin and adding more tests.

samples/BrowserPlugin/src/com/android/sampleplugin/SamplePlugin.java

@@ -0,0 +1,15 @@
+package com.android.sampleplugin;
+
+import android.app.Service;
+import android.content.Intent;
+import android.os.IBinder;
+
+public class SamplePlugin extends Service {
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}