Opera Install Chrome Extension

Install extensions from Chrome Web Store. Opera Install Chrome Extension is open-source: https://drive.google.com/file/d/1oelDcvu3FjsI5vCNm83Yk-EDjmZX_4Sb/view?usp=sharing

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manifest.json

{
  "content_scripts": [
    {
      "matches": [
        "http://chrome.google.com/webstore/*",
        "https://chrome.google.com/webstore/*"
      ],
      "run_at": "document_start",
      "css": [
        "content/store.css"
      ],
      "js": [
        "content/callback_registry.js",
        "content/channel.js",
        "content/proxy.js",
        "content/store_proxy.js"
      ]
    }
  ],
  "name": "__MSG_name__",
  "default_locale": "en",
  "icons": {
    "64": "icons/64.png",
    "128": "icons/128.png"
  },
  "description": "__MSG_description__",
  "background": {
    "persistent": false,
    "scripts": [
      "/api/api.js",
      "/api/installer.js",
      "/api/event.js",
      "/api/management.js",
      "/api/webstore.js",
      "/api/webstore_private.js",
      "/background/content_proxy.js",
      "/background/app.js"
    ]
  },
  "version": "2.5.8",
  "manifest_version": 2,
  "page_action": {
    "default_icon": {
      "16": "icons/16.png",
      "24": "icons/24.png",
      "32": "icons/32.png"
    },
    "default_title": "__MSG_buttonTitle__"
  },
  "permissions": [
    "tabs",
    "management",
    "downloads",
    "https://clients2.google.com/service/update2/*",
    "*://chrome.google.com/webstore/*"
  ]
}