Compositor Animation Timelines: Fix frame swapping tests in WebFrameTest.cpp

third_party/WebKit/Source/web/WebPagePopupImpl.cpp

Index: third_party/WebKit/Source/web/WebPagePopupImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebPagePopupImpl.cpp b/third_party/WebKit/Source/web/WebPagePopupImpl.cpp
index 98c5aaf2f45a3f8c26ec9f019765d2f684258801..d7846576519c393b17648b1d29cc3d8fcede23c6 100644
--- a/third_party/WebKit/Source/web/WebPagePopupImpl.cpp
+++ b/third_party/WebKit/Source/web/WebPagePopupImpl.cpp
@@ -344,6 +344,7 @@ void WebPagePopupImpl::setIsAcceleratedCompositingActive(bool enter)
             m_layerTreeView->setVisible(true);
             m_isAcceleratedCompositingActive = true;
             m_layerTreeView->setDeviceScaleFactor(m_webView->deviceScaleFactor());
+            m_page->layerTreeViewInitialized(*m_layerTreeView);
         } else {
             m_isAcceleratedCompositingActive = false;
         }
@@ -361,6 +362,9 @@ void WebPagePopupImpl::beginFrame(double lastFrameTimeMonotonic)
 
 void WebPagePopupImpl::willCloseLayerTreeView()
 {
+    if (m_page && m_layerTreeView)
+        m_page->willCloseLayerTreeView(*m_layerTreeView);
+
     setIsAcceleratedCompositingActive(false);
     m_layerTreeView = 0;
 }