chromium/chrome/test/data/plugin_power_saver/expanding_tiny_plugins.html

<object id='expand_to_peripheral' data='http://a.com/fake.swf'
    type='application/x-shockwave-flash' width='4' height='4'></object>
<object id='expand_to_essential' data='http://b.com/fake.swf'
    type='application/x-shockwave-flash' width='4' height='4'></object>