(WIP) Invalidation during painting (for synchronized painting)

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 561 matching lines @@
     bool frameTimingRequestsDirty() { return m_frameTimingRequestsDirty; }
 
     // Returns true if this frame should not render or schedule visual updates.
     bool shouldThrottleRendering() const;
 
     // Returns true if this frame could potentially skip rendering and avoid
     // scheduling visual updates.
     bool canThrottleRendering() const;
     bool isHiddenForThrottling() const { return m_hiddenForThrottling; }
 
+    void invalidatePaintIfNeeded();
+    void invalidatePaintIfNeededForSlimmingPaintV2() const
+    {
+        ASSERT(RuntimeEnabledFeatures::slimmingPaintV2Enabled());
+        const_cast<FrameView*>(this)->invalidatePaintIfNeeded();
+    }
+
     // Paint properties for SPv2 Only.
     void setPreTranslation(PassRefPtr<TransformPaintPropertyNode> preTranslation) { m_preTranslation = preTranslation; }
     TransformPaintPropertyNode* preTranslation() const { return m_preTranslation.get(); }
 
     void setScrollTranslation(PassRefPtr<TransformPaintPropertyNode> scrollTranslation) { m_scrollTranslation = scrollTranslation; }
     TransformPaintPropertyNode* scrollTranslation() const { return m_scrollTranslation.get(); }
 
     void setContentClip(PassRefPtr<ClipPaintPropertyNode> contentClip) { m_contentClip = contentClip; }
     ClipPaintPropertyNode* contentClip() const { return m_contentClip.get(); }
 
@@ skipping 342 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