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diff --git a/Source/WebCore/css/WebKitCSSShaderValue.cpp b/Source/WebCore/css/WebKitCSSShaderValue.cpp
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+++ b/Source/WebCore/css/WebKitCSSShaderValue.cpp
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+/*
+ * Copyright 2011 Adobe Systems Incorporated. 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 notice, this list of conditions and the following
+ *    disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (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"
+
+#if ENABLE(CSS_SHADERS)
+#include "WebKitCSSShaderValue.h"
+
+#include "CachedResourceLoader.h"
+#include "Document.h"
+#include "StyleCachedShader.h"
+#include "StylePendingShader.h"
+
+namespace WebCore {
+
+WebKitCSSShaderValue::WebKitCSSShaderValue(const String& url)
+    : CSSPrimitiveValue(WebKitCSSShaderClass, url, CSS_URI)
+    , m_accessedShader(false)
+{
+}
+
+WebKitCSSShaderValue::~WebKitCSSShaderValue()
+{
+}
+
+StyleCachedShader* WebKitCSSShaderValue::cachedShader(CachedResourceLoader* loader)
+{
+    ASSERT(loader);
+
+    if (!m_accessedShader) {
+        m_accessedShader = true;
+
+        ResourceRequest request(loader->document()->completeURL(getStringValue()));
+        if (CachedShader* cachedShader = loader->requestShader(request))
+            m_shader = StyleCachedShader::create(cachedShader);
+    }
+
+    return (m_shader && m_shader->isCachedShader()) ? static_cast<StyleCachedShader*>(m_shader.get()) : 0;
+}
+
+StyleShader* WebKitCSSShaderValue::cachedOrPendingShader()
+{
+    if (!m_shader)
+        m_shader = StylePendingShader::create(this);
+
+    return m_shader.get();
+}
+
+
+} // namespace WebCore
+
+#endif // ENABLE(CSS_SHADERS)