Refactor propagation of parsing errors for SVG attributes

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

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 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 51 matching lines @@
     while (ptr < end) {
         float number = 0;
         if (!parseNumber(ptr, end, number))
             return false;
         append(SVGNumber::create(number));
     }
 
     return true;
 }
 
-void SVGNumberList::setValueAsString(const String& value, ExceptionState& exceptionState)
+SVGParsingError SVGNumberList::setValueAsString(const String& value)
 {
     if (value.isEmpty()) {
         clear();
-        return;
+        return NoError;
     }
 
     bool valid = false;
     if (value.is8Bit()) {
         const LChar* ptr = value.characters8();
         const LChar* end = ptr + value.length();
         valid = parse(ptr, end);
     } else {
         const UChar* ptr = value.characters16();
         const UChar* end = ptr + value.length();
         valid = parse(ptr, end);
     }
 
     if (!valid) {
-        exceptionState.throwDOMException(SyntaxError, "Problem parsing number list \""+value+"\"");
         // No call to |clear()| here. SVG policy is to use valid items before error.
         // Spec: http://www.w3.org/TR/SVG/single-page.html#implnote-ErrorProcessing
+        return ParsingAttributeFailedError;
     }
+    return NoError;
 }
 
 void SVGNumberList::add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other, SVGElement* contextElement)
 {
     RefPtrWillBeRawPtr<SVGNumberList> otherList = toSVGNumberList(other);
 
     if (length() != otherList->length())
         return;
 
     for (size_t i = 0; i < length(); ++i)
@@ skipping 33 matching lines @@
 Vector<float> SVGNumberList::toFloatVector() const
 {
     Vector<float> vec;
     vec.reserveInitialCapacity(length());
     for (size_t i = 0; i < length(); ++i)
         vec.uncheckedAppend(at(i)->value());
     return vec;
 }
 
 }