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      1 /*
      2  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GOOGLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef DocumentLoadTiming_h
     27 #define DocumentLoadTiming_h
     28 
     29 #include "wtf/CurrentTime.h"
     30 
     31 namespace blink {
     32 
     33 class KURL;
     34 
     35 class DocumentLoadTiming {
     36 public:
     37     DocumentLoadTiming();
     38 
     39     double monotonicTimeToZeroBasedDocumentTime(double) const;
     40     double monotonicTimeToPseudoWallTime(double) const;
     41 
     42     void markNavigationStart();
     43     void setNavigationStart(double);
     44     void addRedirect(const KURL& redirectingUrl, const KURL& redirectedUrl);
     45 
     46     void markUnloadEventStart() { m_unloadEventStart = monotonicallyIncreasingTime(); }
     47     void markUnloadEventEnd() { m_unloadEventEnd = monotonicallyIncreasingTime(); }
     48     void markFetchStart() { m_fetchStart = monotonicallyIncreasingTime(); }
     49     void setResponseEnd(double monotonicTime) { m_responseEnd = monotonicTime; }
     50     void markLoadEventStart() { m_loadEventStart = monotonicallyIncreasingTime(); }
     51     void markLoadEventEnd() { m_loadEventEnd = monotonicallyIncreasingTime(); }
     52 
     53     void setHasSameOriginAsPreviousDocument(bool value) { m_hasSameOriginAsPreviousDocument = value; }
     54 
     55     double navigationStart() const { return m_navigationStart; }
     56     double unloadEventStart() const { return m_unloadEventStart; }
     57     double unloadEventEnd() const { return m_unloadEventEnd; }
     58     double redirectStart() const { return m_redirectStart; }
     59     double redirectEnd() const { return m_redirectEnd; }
     60     short redirectCount() const { return m_redirectCount; }
     61     double fetchStart() const { return m_fetchStart; }
     62     double responseEnd() const { return m_responseEnd; }
     63     double loadEventStart() const { return m_loadEventStart; }
     64     double loadEventEnd() const { return m_loadEventEnd; }
     65     bool hasCrossOriginRedirect() const { return m_hasCrossOriginRedirect; }
     66     bool hasSameOriginAsPreviousDocument() const { return m_hasSameOriginAsPreviousDocument; }
     67 
     68     double referenceMonotonicTime() const { return m_referenceMonotonicTime; }
     69 
     70 private:
     71     double m_referenceMonotonicTime;
     72     double m_referenceWallTime;
     73     double m_navigationStart;
     74     double m_unloadEventStart;
     75     double m_unloadEventEnd;
     76     double m_redirectStart;
     77     double m_redirectEnd;
     78     short m_redirectCount;
     79     double m_fetchStart;
     80     double m_responseEnd;
     81     double m_loadEventStart;
     82     double m_loadEventEnd;
     83     bool m_hasCrossOriginRedirect;
     84     bool m_hasSameOriginAsPreviousDocument;
     85 };
     86 
     87 } // namespace blink
     88 
     89 #endif
     90