Replace ASSERT with DCHECK in core/svg/

third_party/WebKit/Source/core/svg/SVGTextContentElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 194 matching lines @@
   if (charnum >= numberOfChars) {
     exceptionState.throwDOMException(
         IndexSizeError, ExceptionMessages::indexExceedsMaximumBound(
                             "charnum", charnum, getNumberOfChars()));
     return;
   }
 
   if (nchars > numberOfChars - charnum)
     nchars = numberOfChars - charnum;
 
-  ASSERT(document().frame());
+  DCHECK(document().frame());
 
   // Find selection start
   VisiblePosition start = VisiblePosition::firstPositionInNode(
       const_cast<SVGTextContentElement*>(this));
   for (unsigned i = 0; i < charnum; ++i)
     start = nextPositionOf(start);
 
   // Find selection end
   VisiblePosition end(start);
   for (unsigned i = 0; i < nchars; ++i)
@@ skipping 63 matching lines @@
   return true;
 }
 
 SVGTextContentElement* SVGTextContentElement::elementFromLineLayoutItem(
     const LineLayoutItem& lineLayoutItem) {
   if (!lineLayoutItem ||
       (!lineLayoutItem.isSVGText() && !lineLayoutItem.isSVGInline()))
     return nullptr;
 
   SVGElement* element = toSVGElement(lineLayoutItem.node());
-  ASSERT(element);
+  DCHECK(element);
   return isSVGTextContentElement(*element) ? toSVGTextContentElement(element)
                                            : 0;
 }
 
 }  // namespace blink