1 files changed, 92 insertions, 0 deletions
diff --git a/Source/WebCore/loader/ResourceLoadStatistics.h b/Source/WebCore/loader/ResourceLoadStatistics.h
new file mode 100644
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+++ b/Source/WebCore/loader/ResourceLoadStatistics.h
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+/*
+ * Copyright (C) 2016-2017 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. ``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
+ * 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 <wtf/HashCountedSet.h>
+#include <wtf/text/StringHash.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebCore {
+
+class KeyedDecoder;
+class KeyedEncoder;
+
+struct ResourceLoadStatistics {
+    ResourceLoadStatistics(const String& primaryDomain)
+        : highLevelDomain(primaryDomain)
+    {
+    }
+
+    ResourceLoadStatistics() = default;
+
+    void encode(KeyedEncoder&) const;
+    bool decode(KeyedDecoder&, unsigned version);
+
+    String toString() const;
+
+    void merge(const ResourceLoadStatistics&);
+
+    String highLevelDomain;
+
+    // User interaction
+    bool hadUserInteraction { false };
+    // Timestamp. Default value is negative, 0 means it was reset.
+    double mostRecentUserInteraction { -1 };
+    bool grandfathered { false };
+
+    // Top frame stats
+    unsigned topFrameHasBeenRedirectedTo { 0 };
+    unsigned topFrameHasBeenRedirectedFrom { 0 };
+    unsigned topFrameInitialLoadCount { 0 };
+    unsigned topFrameHasBeenNavigatedTo { 0 };
+    unsigned topFrameHasBeenNavigatedFrom { 0 };
+    bool topFrameHasBeenNavigatedToBefore { false };
+    
+    // Subframe stats
+    HashCountedSet<String> subframeUnderTopFrameOrigins;
+    unsigned subframeHasBeenRedirectedTo { 0 };
+    unsigned subframeHasBeenRedirectedFrom { 0 };
+    HashCountedSet<String> subframeUniqueRedirectsTo;
+    unsigned subframeSubResourceCount { 0 };
+    unsigned subframeHasBeenNavigatedTo { 0 };
+    unsigned subframeHasBeenNavigatedFrom { 0 };
+    bool subframeHasBeenLoadedBefore { false };
+    
+    // Subresource stats
+    HashCountedSet<String> subresourceUnderTopFrameOrigins;
+    unsigned subresourceHasBeenSubresourceCount { 0 };
+    double subresourceHasBeenSubresourceCountDividedByTotalNumberOfOriginsVisited { 0.0 };
+    unsigned subresourceHasBeenRedirectedFrom { 0 };
+    unsigned subresourceHasBeenRedirectedTo { 0 };
+    HashCountedSet<String> subresourceUniqueRedirectsTo;
+    
+    // Prevalent resource stats
+    HashCountedSet<String> redirectedToOtherPrevalentResourceOrigins;
+    bool isPrevalentResource { false };
+    unsigned dataRecordsRemoved { 0 };
+};
+
+} // namespace WebCore