Implement layoutAndPaintAsync() for WebPagePopupImpl and WebFrameWidgetImpl

Source/web/WebPagePopupImpl.cpp

Index: Source/web/WebPagePopupImpl.cpp
diff --git a/Source/web/WebPagePopupImpl.cpp b/Source/web/WebPagePopupImpl.cpp
index 3968caddc4948ed3768fb4c03d5baa1aaa5c35c3..4635c411febba9d7cd371169a3d12ee58b3e916b 100644
--- a/Source/web/WebPagePopupImpl.cpp
+++ b/Source/web/WebPagePopupImpl.cpp
@@ -490,6 +490,11 @@ LocalDOMWindow* WebPagePopupImpl::window()
     return m_page->deprecatedLocalMainFrame()->localDOMWindow();
 }
 
+void WebPagePopupImpl::layoutAndPaintAsync(WebLayoutAndPaintAsyncCallback* callback)
+{
+    m_layerTreeView->layoutAndPaintAsync(callback);
+}
+
 void WebPagePopupImpl::compositeAndReadbackAsync(WebCompositeAndReadbackAsyncCallback* callback)
 {
     ASSERT(isAcceleratedCompositingActive());