Use LOG() or LOG_IF() instead of IMMEDIATE_CRASH

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

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009, 2013 Apple Inc.
  *               All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 85 matching lines @@
   unsigned RowSpan() const {
     if (!has_row_span_)
       return 1;
     return ParseRowSpanFromDOM();
   }
 
   // Called from HTMLTableCellElement.
   void ColSpanOrRowSpanChanged();
 
   void SetAbsoluteColumnIndex(unsigned column) {
-    if (UNLIKELY(column > kMaxColumnIndex))
-      IMMEDIATE_CRASH();
-
+    CHECK(!UNLIKELY(column > kMaxColumnIndex));

[tkent, 2017/06/05 01:58:51]

UNLIKELY isn't necessary. CHECK() contains it internally.

CHECK_LE(column, kMaxColumnIndex);

     absolute_column_index_ = column;
   }
 
   bool HasSetAbsoluteColumnIndex() const {
     return absolute_column_index_ != kUnsetColumnIndex;
   }
 
   unsigned AbsoluteColumnIndex() const {
     DCHECK(HasSetAbsoluteColumnIndex());
     return absolute_column_index_;
@@ skipping 367 matching lines @@
   return ToLayoutTableCell(FirstChild());
 }
 
 inline LayoutTableCell* LayoutTableRow::LastCell() const {
   return ToLayoutTableCell(LastChild());
 }
 
 }  // namespace blink
 
 #endif  // LayoutTableCell_h