Split out String, URI and CustomIdent from CSSPrimitiveValue

third_party/WebKit/Source/core/css/CSSStringValue.cpp

Index: third_party/WebKit/Source/core/css/CSSStringValue.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSStringValue.cpp b/third_party/WebKit/Source/core/css/CSSStringValue.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..302a6b02128f22119093976e843e883022fd15dd
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/CSSStringValue.cpp
@@ -0,0 +1,27 @@
+// Copyright 2015 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/css/CSSStringValue.h"
+
+#include "core/css/CSSMarkup.h"
+#include "wtf/text/WTFString.h"
+
+namespace blink {
+
+CSSStringValue::CSSStringValue(const String& str)
+    : CSSValue(StringClass)
+    , m_string(str) { }
+
+String CSSStringValue::customCSSText() const
+{
+    return serializeString(m_string);
+}
+
+DEFINE_TRACE_AFTER_DISPATCH(CSSStringValue)
+{
+    CSSValue::traceAfterDispatch(visitor);
+}
+
+} // namespace blink