/WebM Looper/icon.png
http://i.imgur.com/ayMrOD8.png

/WebM Looper/loopWebM.js
	//// Courtesy of The Chromium Authors. All rights reserved.
	//   Made by an anon for other anons
	var videoWrapper = document.getElementsByTagName("video")[0];
	videoWrapper.loop = true;
	videoWrapper.controls = false;

/WebM Looper/manifest.json
	{
	"manifest_version": 2,

	"name": "AutoWebM Looper",
	"description": "This extension loops WebM files automatically",
	"version": "1.0",
		"permissions": [
		"tabs",
  		"*://*/*.webm",
		"file:///*/*.webm"
	],

	"content_scripts": [
	{
		"matches": ["*://*/*.webm","file:///*/*.webm"],
		"js": ["loopWebM.js"],
		"run_at": "document_end"
	}
	],

	"icons": { "128": "icon.png" }
	}