Merge 2840: Fix removeChildNode to unmark orthogonal writing mode roots when !notifyLayoutObject

third_party/WebKit/Source/core/frame/FrameView.cpp

Index: third_party/WebKit/Source/core/frame/FrameView.cpp
diff --git a/third_party/WebKit/Source/core/frame/FrameView.cpp b/third_party/WebKit/Source/core/frame/FrameView.cpp
index 847432e8fb67c7663c317704b498fe48698c023a..7b2e3eca49d6027462409a36245261c844a251ee 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -1832,8 +1832,7 @@ void FrameView::clearLayoutSubtreeRootsAndMarkContainingBlocks()
 
 void FrameView::addOrthogonalWritingModeRoot(LayoutBox& root)
 {
-    DCHECK(!root.isLayoutFullScreen() && !root.isLayoutFullScreenPlaceholder()
-        && !root.isLayoutScrollbarPart());
+    DCHECK(!root.isLayoutScrollbarPart());
     m_orthogonalWritingModeRootList.add(root);
 }