Kill WTF::DecimalNumber class

Source/core/css/CSSPrimitiveValue.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2012 Apple 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
  * 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 17 matching lines @@
 #include "core/css/CSSMarkup.h"
 #include "core/css/CSSToLengthConversionData.h"
 #include "core/css/Counter.h"
 #include "core/css/Pair.h"
 #include "core/css/RGBColor.h"
 #include "core/css/Rect.h"
 #include "core/css/StyleSheetContents.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/Node.h"
 #include "core/rendering/style/RenderStyle.h"
+#include "platform/Decimal.h"
 #include "platform/LayoutUnit.h"
-#include "wtf/DecimalNumber.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/text/StringBuffer.h"
 #include "wtf/text/StringBuilder.h"
 
 using namespace WTF;
 
 namespace WebCore {
 
 // Max/min values for CSS, needs to slightly smaller/larger than the true max/min values to allow for rounding without overflowing.
 // Subtract two (rather than one) to allow for values to be converted to float and back without exceeding the LayoutUnit::max.
@@ skipping 983 matching lines @@
     if (m_primitiveUnitType != CSS_PAIR) {
         exceptionState.throwDOMException(InvalidAccessError, "This object is not a pair value.");
         return 0;
     }
 
     return m_value.pair;
 }
 
 static String formatNumber(double number, const char* suffix, unsigned suffixLength)
 {
-    DecimalNumber decimal(number);
-
-    StringBuffer<LChar> buffer(decimal.bufferLengthForStringDecimal() + suffixLength);
-    unsigned length = decimal.toStringDecimal(buffer.characters(), buffer.length());
-    ASSERT(length + suffixLength == buffer.length());
-
-    for (unsigned i = 0; i < suffixLength; ++i)
-        buffer[length + i] = static_cast<LChar>(suffix[i]);
-
-    return String::adopt(buffer);
+    Decimal decimal = Decimal::fromDouble(number);
+    String result = decimal.toString();
+    result.append(suffix, suffixLength);
+    return result;
 }
 
 template <unsigned characterCount>
 ALWAYS_INLINE static String formatNumber(double number, const char (&characters)[characterCount])
 {
     return formatNumber(number, characters, characterCount - 1);
 }
 
 static String formatNumber(double number, const char* characters)
 {
@@ skipping 401 matching lines @@
     case CSS_SHAPE:
         visitor->trace(m_value.shape);
         break;
     default:
         break;
     }
     CSSValue::traceAfterDispatch(visitor);
 }
 
 } // namespace WebCore