chromium/chrome/common/extensions/api/devtools/performance.json

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

[
  {
    "namespace": "devtools.performance",
    "description": "Use the <code>chrome.devtools.performance</code> API to listen to recording status updates in the Performance panel in DevTools.",
    "nocompile": true,
    "events": [
      {
        "name": "onProfilingStarted",
        "type": "function",
        "description": "Fired when the Performance panel starts recording.",
        "parameters": []
      },
      {
        "name": "onProfilingStopped",
        "type": "function",
        "description": "Fired when the Performance panel stops recording.",
        "parameters": []
      }
    ]
  }
]