Copy page URL as plain text

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Copy page URL as plain text",
  "short_name": "Copy URL text",
  "description": "Decodes the page address URI and copies it to clipboard as plain text.",
  "version": "0.0.4",
  "minimum_chrome_version": "38",
  "permissions": [
    "contextMenus",
    "activeTab"
  ],
  "browser_action": {
    "default_icon": {
      "16": "assets/link-16.png",
      "24": "assets/link-24.png",
      "32": "assets/link-32.png"
    }
  },
  "icons": {
    "16": "assets/link-16.png",
    "32": "assets/link-32.png",
    "48": "assets/link-48.png",
    "128": "assets/link-128.png"
  },
  "background": {
    "page": "background.html"
  }
}