* refactor: use private inheritance in CookieChangeNotifier
* refactor: use private inheritance in WebViewGuestDelegate
* refactor: use private inheritance in UsbChooserController
* refactor: use private inheritance in DesktopCapturer
* refactor: use private inheritance in Browser
* refactor: use private inheritance in WebContentsZoomController
* refactor: use private inheritance in FrameSubscriber
* refactor: use private inheritance in AutofillAgent
* refactor: use private inheritance in HidChooserController
* refactor: use private inheritance in PepperHelper
* refactor: use private inheritance in AutofillPopup
* refactor: use private inheritance in SerialChooserController
* refactor: use private inheritance in MediaCaptureDevicesDispatcher
* refactor: use private inheritance in electron::api::View
* refactor: use private inheritance in AutofillDriverFactory
* refactor: use private inheritance in GPUInfoManager
* refactor: use private inheritance in SavePageHandler
* refactor: use private inheritance in GlobalShortcut
* refactor: use private inheritance in ElectronRenderFrameObserver
* refactor: use gin in Promise
* refactor: separate Promise impl that returns nothing
* refactor: use Promise<void> for promise that returns nothing
* fix: methods should be able to run on both browser and renderer process
* fix: should not pass base::StringPiece across threads
* refactor: no more need to use different ResolvePromise for empty Promise
* refactor: move Promise to gin_helper
* refactor: make util::Promise type safe when chaining in native
* fixup! refactor: make util::Promise type safe when chaining in native
* chore: remove spare brackets