Move ready-to-show to api::BrowserWindow

atom/browser/native_window.cc

@@ -672,22 +672,6 @@ void NativeWindow::BeforeUnloadDialogCancelled() {
   window_unresposive_closure_.Cancel();
 }
 
-void NativeWindow::DidFirstVisuallyNonEmptyPaint() {
-  if (IsVisible())
-    return;
-
-  // When there is a non-empty first paint, resize the RenderWidget to force
-  // Chromium to draw.
-  const auto view = web_contents()->GetRenderWidgetHostView();
-  view->Show();
-  view->SetSize(GetContentSize());
-
-  // Emit the ReadyToShow event in next tick in case of pending drawing work.
-  base::ThreadTaskRunnerHandle::Get()->PostTask(
-      FROM_HERE,
-      base::Bind(&NativeWindow::NotifyReadyToShow, GetWeakPtr()));
-}
-
 bool NativeWindow::OnMessageReceived(const IPC::Message& message,
                                      content::RenderFrameHost* rfh) {
   bool handled = true;
@@ -731,9 +715,4 @@ void NativeWindow::NotifyWindowUnresponsive() {
   }
 }
 
-void NativeWindow::NotifyReadyToShow() {
-  for (NativeWindowObserver& observer : observers_)
-    observer.OnReadyToShow();
-}
-
 }  // namespace atom