FirstMeaningfulPaint UMA

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.h

 /*
  * Copyright (C) 2009, 2010, 2011 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
@@ skipping 137 matching lines @@
 #if ENABLE(ASSERT)
     bool verifyLayerInSquashingVector(const PaintLayer*);
 #endif
 
     void finishAccumulatingSquashingLayers(size_t nextSquashedLayerIndex, Vector<PaintLayer*>& layersNeedingPaintInvalidation);
     void updateRenderingContext();
     void updateShouldFlattenTransform();
     void updateElementIdAndCompositorMutableProperties();
 
     // GraphicsLayerClient interface
-    void notifyFirstPaint() override;
-    void notifyFirstTextPaint() override;
-    void notifyFirstImagePaint() override;
+    void notifyPaint(bool isFirstPaint, bool textPainted, bool imagePainted) override;
 
     IntRect computeInterestRect(const GraphicsLayer*, const IntRect& previousInterestRect) const override;
     LayoutSize subpixelAccumulation() const final;
     bool needsRepaint(const GraphicsLayer&) const override;
     void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect& interestRect) const override;
 
     bool isTrackingPaintInvalidations() const override;
 
 #if ENABLE(ASSERT)
     void verifyNotPainting() override;
@@ skipping 284 matching lines @@
 
     unsigned m_backgroundLayerPaintsFixedRootBackground : 1;
     unsigned m_scrollingContentsAreEmpty : 1;
 
     friend class CompositedLayerMappingTest;
 };
 
 } // namespace blink
 
 #endif // CompositedLayerMapping_h