chromium/chrome/test/data/pdf/extension_injects_iframe/manifest.json

{
    "content_scripts": [ {
        "js": ["inject.js"],
        "matches": ["<all_urls>"],
        "run_at": "document_end"
    }],
    "description": "Test extension that breaks displaying of PDF files in Chromium.",
    "manifest_version": 2,
    "name": "Break PDF Display",
    "permissions": [ "<all_urls>"],
    "version": "0.1"
}