FirstMeaningfulPaint UMA

third_party/WebKit/Source/core/frame/FrameView.h

 /*
    Copyright (C) 1997 Martin Jones (mjones@kde.org)
              (C) 1998 Waldo Bastian (bastian@kde.org)
              (C) 1998, 1999 Torben Weis (weis@kde.org)
              (C) 1999 Lars Knoll (knoll@kde.org)
              (C) 1999 Antti Koivisto (koivisto@kde.org)
    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
@@ skipping 14 matching lines @@
 #ifndef FrameView_h
 #define FrameView_h
 
 #include "core/CoreExport.h"
 #include "core/dom/DocumentLifecycle.h"
 #include "core/frame/FrameViewAutoSizeInfo.h"
 #include "core/frame/LayoutSubtreeRootList.h"
 #include "core/frame/RootFrameViewport.h"
 #include "core/layout/ScrollAnchor.h"
 #include "core/layout/api/LayoutViewItem.h"
+#include "core/paint/FirstMeaningfulPaintDetector.h"
 #include "core/paint/PaintInvalidationCapableScrollableArea.h"
 #include "core/paint/PaintPhase.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/Widget.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/geometry/LayoutRect.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/paint/ClipPaintPropertyNode.h"
 #include "platform/graphics/paint/EffectPaintPropertyNode.h"
 #include "platform/graphics/paint/TransformPaintPropertyNode.h"
@@ skipping 210 matching lines @@
     void updateLifecycleToCompositingCleanPlusScrolling();
 
     // Computes only the style and layout lifecycle stages.
     // After calling this method, all frames will be in a lifecycle state >= LayoutClean (unless throttling is allowed).
     void updateLifecycleToLayoutClean();
 
     void scheduleVisualUpdateForPaintInvalidationIfNeeded();
 
     bool invalidateViewportConstrainedObjects();
 
+    void incrementLayoutObjectCount() { m_layoutObjectCounter.increment(); }
     void incrementVisuallyNonEmptyCharacterCount(unsigned);
     void incrementVisuallyNonEmptyPixelCount(const IntSize&);
     bool isVisuallyNonEmpty() const { return m_isVisuallyNonEmpty; }
     void setIsVisuallyNonEmpty() { m_isVisuallyNonEmpty = true; }
     void enableAutoSizeMode(const IntSize& minSize, const IntSize& maxSize);
     void disableAutoSizeMode();
 
     void forceLayoutForPagination(const FloatSize& pageSize, const FloatSize& originalPageSize, float maximumShrinkFactor);
 
     enum UrlFragmentBehavior {
@@ skipping 544 matching lines @@
     float m_lastZoomFactor;
 
     AtomicString m_mediaType;
     AtomicString m_mediaTypeWhenNotPrinting;
 
     bool m_safeToPropagateScrollToParent;
 
     unsigned m_visuallyNonEmptyCharacterCount;
     uint64_t m_visuallyNonEmptyPixelCount;
     bool m_isVisuallyNonEmpty;
+    FirstMeaningfulPaintDetector::LayoutObjectCounter m_layoutObjectCounter;
 
     Member<Node> m_fragmentAnchor;
 
     // layoutObject to hold our custom scroll corner.
     LayoutScrollbarPart* m_scrollCorner;
 
     Member<ScrollableAreaSet> m_scrollableAreas;
     Member<ScrollableAreaSet> m_animatingScrollableAreas;
     std::unique_ptr<ResizerAreaSet> m_resizerAreas;
     std::unique_ptr<ViewportConstrainedObjectSet> m_viewportConstrainedObjects;
@@ skipping 119 matching lines @@
     if (m_visuallyNonEmptyPixelCount > visualPixelThreshold)
         setIsVisuallyNonEmpty();
 }
 
 DEFINE_TYPE_CASTS(FrameView, Widget, widget, widget->isFrameView(), widget.isFrameView());
 DEFINE_TYPE_CASTS(FrameView, ScrollableArea, scrollableArea, scrollableArea->isFrameView(), scrollableArea.isFrameView());
 
 } // namespace blink
 
 #endif // FrameView_h