Instrument parser blocking script execution time.

third_party/WebKit/Source/core/dom/DocumentParserTiming.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef DocumentParserTiming_h
 #define DocumentParserTiming_h
 
 #include "core/dom/Document.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
@@ skipping 33 matching lines @@
     void markParserDetached();
 
     // Record a duration of time that the parser yielded due to loading a
     // script, in seconds. scriptInsertedViaDocumentWrite indicates whether the
     // script causing blocking was inserted via document.write. This may be
     // called multiple times, once for each time the parser yields on a script
     // load.
     void recordParserBlockedOnScriptLoadDuration(
         double duration, bool scriptInsertedViaDocumentWrite);
 
+    // Record a duration of time that the parser spent executing a script, in
+    // seconds. scriptInsertedViaDocumentWrite indicates whether the script
+    // being executed was inserted via document.write. This may be called
+    // multiple times, once for each time the parser executes a script.
+    void recordParserBlockedOnScriptExecutionDuration(
+        double duration, bool scriptInsertedViaDocumentWrite);
+
     // The getters below return monotonically-increasing seconds, or zero if the
     // given parser event has not yet occurred.  See the comments for
     // monotonicallyIncreasingTime in wtf/CurrentTime.h for additional details.
 
     double parserStart() const { return m_parserStart; }
     double parserStop() const { return m_parserStop; }
 
     // Returns the sum of all blocking script load durations reported via
     // recordParseBlockedOnScriptLoadDuration.
     double parserBlockedOnScriptLoadDuration() const { return m_parserBlockedOnScriptLoadDuration; }
 
     // Returns the sum of all blocking script load durations due to
     // document.write reported via recordParseBlockedOnScriptLoadDuration. Note
     // that some uncommon cases are not currently covered by this method. See
     // crbug/600711 for details.
     double parserBlockedOnScriptLoadFromDocumentWriteDuration() const { return m_parserBlockedOnScriptLoadFromDocumentWriteDuration; }
 
+    // Returns the sum of all script execution durations reported via
+    // recordParseBlockedOnScriptExecutionDuration.
+    double parserBlockedOnScriptExecutionDuration() const { return m_parserBlockedOnScriptExecutionDuration; }
+
+    // Returns the sum of all script execution durations due to
+    // document.write reported via recordParseBlockedOnScriptExecutionDuration. Note
+    // that some uncommon cases are not currently covered by this method. See
+    // crbug/600711 for details.
+    double parserBlockedOnScriptExecutionFromDocumentWriteDuration() const { return m_parserBlockedOnScriptExecutionFromDocumentWriteDuration; }
+
     DECLARE_VIRTUAL_TRACE();
 
 private:
     explicit DocumentParserTiming(Document&);
     void notifyDocumentParserTimingChanged();
 
     double m_parserStart = 0.0;
     double m_parserStop = 0.0;
     double m_parserBlockedOnScriptLoadDuration = 0.0;
     double m_parserBlockedOnScriptLoadFromDocumentWriteDuration = 0.0;
+    double m_parserBlockedOnScriptExecutionDuration = 0.0;
+    double m_parserBlockedOnScriptExecutionFromDocumentWriteDuration = 0.0;
     bool m_parserDetached = false;
 
     Member<Document> m_document;
 };
 
 } // namespace blink
 
 #endif