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diff --git a/Source/WebCore/loader/ResourceLoadInfo.h b/Source/WebCore/loader/ResourceLoadInfo.h
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+++ b/Source/WebCore/loader/ResourceLoadInfo.h
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+/*
+ * Copyright (C) 2015 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
+ *    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 APPLE INC. AND ITS CONTRIBUTORS ``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 APPLE INC. OR ITS CONTRIBUTORS
+ * 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.
+ */
+
+#pragma once
+
+#include "CachedResource.h"
+#include "URL.h"
+
+namespace WebCore {
+
+enum class ResourceType : uint16_t {
+    Invalid = 0x0000,
+    Document = 0x0001,
+    Image = 0x0002,
+    StyleSheet = 0x0004,
+    Script = 0x0008,
+    Font = 0x0010,
+    Raw = 0x0020,
+    SVGDocument = 0x0040,
+    Media = 0x0080,
+    PlugInStream = 0x0100,
+    Popup = 0x0200,
+};
+const uint16_t ResourceTypeMask = 0x03FF;
+
+enum class LoadType : uint16_t {
+    Invalid = 0x0000,
+    FirstParty = 0x0400,
+    ThirdParty = 0x0800,
+};
+const uint16_t LoadTypeMask = 0x0C00;
+
+typedef uint16_t ResourceFlags;
+
+// The first 32 bits of a uint64_t action are used for the action location.
+// The next 16 bits are used for the flags (ResourceType and LoadType).
+// The next bit is used to mark actions that are from a rule with an if-domain condition.
+// The next bit is used to mark actions that in the default stylesheet.
+// The values -1 and -2 are used for removed and empty values in HashTables.
+const uint64_t ActionFlagMask = 0x0000FFFF00000000;
+const uint64_t IfDomainFlag = 0x0001000000000000;
+
+ResourceType toResourceType(CachedResource::Type);
+uint16_t readResourceType(const String&);
+uint16_t readLoadType(const String&);
+
+struct ResourceLoadInfo {
+    URL resourceURL;
+    URL mainDocumentURL;
+    ResourceType type;
+
+    bool isThirdParty() const;
+    ResourceFlags getResourceFlags() const;
+};
+
+} // namespace WebCore