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

third_party/WebKit/Source/web/WebViewImpl.cpp

Index: third_party/WebKit/Source/web/WebViewImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebViewImpl.cpp b/third_party/WebKit/Source/web/WebViewImpl.cpp
index 5cf6ad4532dc1a9c8ca0fdd30c0913b82f212f3f..ea73462478c7157fed04066c47183251c8003dae 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.cpp
+++ b/third_party/WebKit/Source/web/WebViewImpl.cpp
@@ -2680,8 +2680,8 @@ void WebViewImpl::willCloseLayerTreeView()
         m_linkHighlightsTimeline.clear();
     }
 
-    if (page())
-        page()->willCloseLayerTreeView();
+    if (m_layerTreeView)
+        page()->willCloseLayerTreeView(*m_layerTreeView);
 
     setRootGraphicsLayer(nullptr);
     m_layerTreeView = nullptr;
@@ -4232,6 +4232,8 @@ void WebViewImpl::initializeLayerTreeView()
         devTools->layerTreeViewChanged(m_layerTreeView);
 
     m_page->settings().setAcceleratedCompositingEnabled(m_layerTreeView);
+    if (m_layerTreeView)
+        m_page->layerTreeViewInitialized(*m_layerTreeView);
 
     // FIXME: only unittests, click to play, Android printing, and printing (for headers and footers)
     // make this assert necessary. We should make them not hit this code and then delete allowsBrokenNullLayerTreeView.