HTML5 Media Rate Controller

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 2,
    "name": "HTML5 Media Rate Controller",
    "short_name": "MRC",
    "description": "HTML5 Media Rate Controller allows changing video and audio playback rate or time giving you control over media in your browser.",
    "version": "1.0.1",
    "icons": {
        "16": "icon-16x16.png",
        "48": "icon-48x48.png",
        "128": "icon-128x128.png"
    },
    "browser_action": {
        "default_icon": "icon-48x48.png",
        "default_popup": "popup.html"
    },
    "permissions": [
        "activeTab",
        ""
    ],
    "content_scripts": [
        {
            "matches": [
                ""
            ],
            "js": [
                "content_main.js"
            ],
            "all_frames": true
        }
    ],
    "commands": {
        "toggle-feature-foo": {
            "suggested_key": {
                "default": "Ctrl+Shift+Y",
                "mac": "Command+Shift+Y"
            },
            "description": "Toggle feature foo"
        }
    }
}