Revert "Allow whitespace inside anonymous table cells" from M45

Source/core/dom/Text.cpp

Index: Source/core/dom/Text.cpp
diff --git a/Source/core/dom/Text.cpp b/Source/core/dom/Text.cpp
index 71ce46fafe31b261b867f458704327e75b04cf5b..4f46e8abb87b7a02e36d8616e7d9793b75794c77 100644
--- a/Source/core/dom/Text.cpp
+++ b/Source/core/dom/Text.cpp
@@ -237,31 +237,12 @@ PassRefPtrWillBeRawPtr<Node> Text::cloneNode(bool /*deep*/)
     return cloneWithData(data());
 }
 
-static inline bool hasGeneratedAnonymousTableCells(const LayoutObject& parent)
-{
-    // We're checking whether the table part has generated anonymous table
-    // part wrappers to hold its contents, so inspecting its first child will suffice.
-    LayoutObject* child = parent.slowFirstChild();
-    if (!child || !child->isAnonymous())
-        return false;
-    if (child->isTableCell())
-        return true;
-    if (child->isTableSection() || child->isTableRow())
-        return hasGeneratedAnonymousTableCells(*child);
-    return false;
-}
-
 static inline bool canHaveWhitespaceChildren(const LayoutObject& parent)
 {
     // <button> should allow whitespace even though LayoutFlexibleBox doesn't.
     if (parent.isLayoutButton())
         return true;
 
-    // Allow whitespace when the text is inside a table, section or row element that
-    // has generated anonymous table cells to hold its contents.
-    if (hasGeneratedAnonymousTableCells(parent))
-        return true;
-
     if (parent.isTable() || parent.isTableRow() || parent.isTableSection()
         || parent.isLayoutTableCol() || parent.isFrameSet()
         || parent.isFlexibleBox() || parent.isLayoutGrid()