Don't use canCollapseAnonymousBlockChild() to determine whether to truncate text.

third_party/WebKit/Source/core/layout/LayoutObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 762 matching lines @@
     Document& document() const
     {
         ASSERT(m_node || parent()); // crbug.com/402056
         return m_node ? m_node->document() : parent()->document();
     }
     LocalFrame* frame() const { return document().frame(); }
 
     virtual LayoutMultiColumnSpannerPlaceholder* spannerPlaceholder() const { return nullptr; }
     bool isColumnSpanAll() const { return style()->getColumnSpan() == ColumnSpanAll && spannerPlaceholder(); }
 
-    // We include isLayoutButton in this check because buttons are implemented
-    // using flex box but should still support first-line|first-letter.
+    // We include isLayoutButton() in this check, because buttons are
+    // implemented using flex box but should still support things like
+    // first-line, first-letter and text-overflow.
     // The flex box and grid specs require that flex box and grid do not
     // support first-line|first-letter, though.
     // TODO(cbiesinger): Remove when buttons are implemented with align-items instead
     // of flex box. crbug.com/226252.
-    bool canHaveFirstLineOrFirstLetterStyle() const { return isLayoutBlockFlow() || isLayoutButton(); }
+    bool behavesLikeBlockContainer() const { return isLayoutBlockFlow() || isLayoutButton(); }
 
     bool hasFilterOrReflection() const;
 
     // This function returns the containing block of the object.
     // Due to CSS being inconsistent, a containing block can be a relatively
     // positioned inline, thus we can't return a LayoutBlock from this function.
     //
     // This method is extremely similar to containingBlock(), but with a few
     // notable exceptions.
     // (1) It can be used on orphaned subtrees, i.e., it can be called safely
@@ skipping 1381 matching lines @@
 void showTree(const blink::LayoutObject*);
 void showLineTree(const blink::LayoutObject*);
 void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 void showLayoutTree(const blink::LayoutObject* object1, const blink::LayoutObject* object2);
 
 #endif
 
 #endif // LayoutObject_h