src/vs/workbench/contrib/webview/electron-sandbox/webviewService.ts/ElectronWebviewService/createWebviewElement
class ElectronWebviewService:	override createWebviewElement(initInfo: WebviewInitInfo): IWebviewElement {
		const webview = this._instantiationService.createInstance(ElectronWebviewElement, initInfo, this._webviewThemeDataProvider);
		this.registerNewWebview(webview);
		return webview;
	}