Proper support for multiple text decorations.

Source/core/rendering/style/AppliedTextDecoration.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "core/rendering/style/AppliedTextDecoration.h"
+
+namespace WebCore {
+
+AppliedTextDecoration::AppliedTextDecoration(TextDecoration line, TextDecorationStyle style, StyleColor color)
+    : m_line(line)
+    , m_style(style)
+    , m_color(color)
+{
+}
+
+AppliedTextDecoration::AppliedTextDecoration(TextDecoration line)
+    : m_line(line)
+    , m_style(TextDecorationStyleSolid)
+    , m_color(StyleColor::currentColor())
+{
+}
+
+AppliedTextDecoration::AppliedTextDecoration()
+    : m_line(TextDecorationUnderline)
+    , m_style(TextDecorationStyleSolid)
+    , m_color(StyleColor::currentColor())
+{
+}
+
+bool AppliedTextDecoration::operator==(const AppliedTextDecoration& o) const
+{
+    return m_color == o.m_color && m_line == o.m_line && m_style == o.m_style;
+}
+
+} // namespace WebCore