Source/WebCore/loader/CanvasActivityRecord.cpp

/*
 * Copyright (C) 2018 Apple Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
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 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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#include "config.h"
#include "CanvasActivityRecord.h"

const unsigned maximumNumberOfStringsToRecord = 10;
namespace WebCore {
bool CanvasActivityRecord::recordWrittenOrMeasuredText(const String& text)
{
    // We limit the size of the textWritten HashSet to save memory and prevent bloating
    // the plist with the resourceLoadStatistics entries. A few strings is often enough
    // to provide sufficient information about the state of canvas activity.
    if (textWritten.size() >= maximumNumberOfStringsToRecord)
        return false;
    return textWritten.add(text).isNewEntry;
}

void CanvasActivityRecord::mergeWith(const CanvasActivityRecord& otherCanvasActivityRecord)
{
    textWritten.add(otherCanvasActivityRecord.textWritten.begin(), otherCanvasActivityRecord.textWritten.end());
    wasDataRead |= otherCanvasActivityRecord.wasDataRead;
}
} // namespace WebCore