tools/perf/page_sets/tough_image_cases.json

{
  "description": "A collection of image-heavy sites.",
  "user_agent_type": "desktop",
  "pages": [
    { "url": "http://www.free-pictures-photos.com/aviation/airplane-306.jpg" },
    { "url": "http://upload.wikimedia.org/wikipedia/commons/c/cb/General_history%2C_Alaska_Yukon_Pacific_Exposition%2C_fully_illustrated_-_meet_me_in_Seattle_1909_-_Page_78.jpg" }
  ]
}