[bindings] Remove custom binding usage in SQLResultSetRowList.

Source/modules/webdatabase/SQLResultSetRowList.cpp

 /*
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 11 matching lines @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "modules/webdatabase/SQLResultSetRowList.h"
 
+#include "bindings/modules/v8/ScriptValueUtilities.h"
+#include "core/dom/ExceptionCode.h"
+
 namespace blink {
 
 unsigned SQLResultSetRowList::length() const
 {
     if (m_result.size() == 0)
         return 0;
 
     ASSERT(m_result.size() % m_columns.size() == 0);
 
     return m_result.size() / m_columns.size();
 }
 
+ScriptValue SQLResultSetRowList::item(ScriptState* scriptState, unsigned index, ExceptionState& exceptionState)
+{
+    if (index >= length()) {
+        exceptionState.throwDOMException(IndexSizeError, ExceptionMessages::indexExceedsMaximumBound<unsigned>("index", index, length()));
+        return ScriptValue();
+    }
+
+    unsigned numColumns = m_columns.size();
+    unsigned valuesIndex = index * numColumns;
+
+    Vector<std::pair<String, SQLValue>> dataArray;
+    for (unsigned i = 0; i < numColumns; ++i)
+        dataArray.append(std::make_pair(m_columns[i], m_result[valuesIndex + i]));
+
+    return toScriptValue(scriptState, dataArray);
 }
+
+} // namespace blink