didClearWindowObject  231 components/plugins/renderer/webview_plugin.cc void WebViewPlugin::didClearWindowObject(WebFrame* frame, int world_id) {
didClearWindowObject 1825 content/renderer/render_frame_impl.cc void RenderFrameImpl::didClearWindowObject(blink::WebLocalFrame* frame,
didClearWindowObject 2483 content/renderer/render_view_impl.cc void RenderViewImpl::didClearWindowObject(WebLocalFrame* frame, int world_id) {