chromium/chrome/common/extensions/api/page_capture.json

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

[
  {
    "namespace": "pageCapture",
    "description": "Use the <code>chrome.pageCapture</code> API to save a tab as MHTML.",
    "functions": [
      {
        "name": "saveAsMHTML",
        "type": "function",
        "description": "Saves the content of the tab with given id as MHTML.",
        "parameters": [
          {
            "name": "details",
            "type": "object",
            "properties": {
              "tabId": {
                "type": "integer",
                "minimum": 0,
                "description": "The id of the tab to save as MHTML."
              }
            }
          }
        ],
        "returns_async": {
          "name": "callback",
          "description": "Called when the MHTML has been generated.",
          "parameters": [
            {
              "name": "mhtmlData",
              "type": "binary",
              "optional": true,
              "description": "The MHTML data as a Blob."
            }
          ]
        }
      }
    ]
  }
]