Make canNavigate() OOPI-friendly

Source/core/frame/FrameView.cpp

Index: Source/core/frame/FrameView.cpp
diff --git a/Source/core/frame/FrameView.cpp b/Source/core/frame/FrameView.cpp
index 61cf629873ec39cc949226d3c4c7849c92ed4ddc..9b2004d7a60edb737ed362c6e1c7745ee5eda06f 100644
--- a/Source/core/frame/FrameView.cpp
+++ b/Source/core/frame/FrameView.cpp
@@ -1969,17 +1969,18 @@ void FrameView::scrollToAnchor()
     if (anchorNode != m_frame->document())
         rect = anchorNode->boundingBox();
 
-    RefPtrWillBeRawPtr<LocalFrame> boundaryFrame = m_frame->document()->findUnsafeParentScrollPropagationBoundary();
+    RefPtrWillBeRawPtr<Frame> boundaryFrame = m_frame->findUnsafeParentScrollPropagationBoundary();
 
-    if (boundaryFrame)
-        boundaryFrame->view()->setSafeToPropagateScrollToParent(false);
+    // FIXME: Handle RemoteFrames
+    if (boundaryFrame && boundaryFrame->isLocalFrame())
+        toLocalFrame(boundaryFrame.get())->view()->setSafeToPropagateScrollToParent(false);
 
     // Scroll nested layers and frames to reveal the anchor.
     // Align to the top and to the closest side (this matches other browsers).
     anchorNode->renderer()->scrollRectToVisible(rect, ScrollAlignment::alignToEdgeIfNeeded, ScrollAlignment::alignTopAlways);
 
-    if (boundaryFrame)
-        boundaryFrame->view()->setSafeToPropagateScrollToParent(true);
+    if (boundaryFrame && boundaryFrame->isLocalFrame())
+        toLocalFrame(boundaryFrame.get())->view()->setSafeToPropagateScrollToParent(true);
 
     if (AXObjectCache* cache = m_frame->document()->existingAXObjectCache())
         cache->handleScrolledToAnchor(anchorNode.get());