Traverse into child LayoutViews during invalidateTreeIfNeeded

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 45 matching lines @@
 class HTMLFrameOwnerElement;
 class LayoutPart;
 class LocalFrame;
 class KURL;
 class Node;
 class LayoutBox;
 class LayoutEmbeddedObject;
 class LayoutObject;
 class LayoutScrollbarPart;
 class LayoutView;
+class PaintInvalidationState;
 class Page;
 class ScrollingCoordinator;
 class TracedValue;
 struct AnnotatedRegionValue;
 struct CompositedSelection;
 
 typedef unsigned long long DOMTimeStamp;
 
 class CORE_EXPORT FrameView final : public Widget, public ScrollableArea {
 public:
@@ skipping 472 matching lines @@
 
     LayoutAnalyzer* layoutAnalyzer() { return m_analyzer.get(); }
 
     // Returns true if the default scrolling direction is vertical. i.e. writing mode
     // is horiziontal. In a vertical document, a spacebar scrolls down.
     bool isVerticalDocument() const;
 
     // Returns true if the document's writing mode is right-to-left or bottom-to-top.
     bool isFlippedDocument() const;
 
+    void invalidateTreeIfNeeded(PaintInvalidationState&);

[chrishtr, 2015/06/29 23:32:22]

Add a note that you shouldn't add a new top-level caller to this that is not for
the root frame of a frame tree.

[Xianzhu, 2015/06/30 00:02:12]

In the new patch set I keep it private, and add 'friend class LayoutPart'.

+
 protected:
     // Scroll the content via the compositor.
     bool scrollContentsFastPath(const IntSize& scrollDelta);
 
     // Scroll the content by invalidating everything.
     void scrollContentsSlowPath(const IntRect& updateRect);
 
     // Prevents creation of scrollbars. Used to prevent drawing two sets of
     // overlay scrollbars in the case of the pinch viewport.
     bool scrollbarsDisabled() const;
@@ skipping 55 matching lines @@
     void applyOverflowToViewport(LayoutObject*, ScrollbarMode& hMode, ScrollbarMode& vMode);
     void updateOverflowStatus(bool horizontalOverflow, bool verticalOverflow);
 
     void updateCounters();
     void forceLayoutParentViewIfNeeded();
     void performPreLayoutTasks();
     void performLayout(bool inSubtreeLayout);
     void scheduleOrPerformPostLayoutTasks();
     void performPostLayoutTasks();
 
-    void invalidateTreeIfNeeded(Vector<LayoutObject*>& pendingDelayedPaintInvalidations);
-
     DocumentLifecycle& lifecycle() const;
 
     void contentRectangleForPaintInvalidation(const IntRect&);
     virtual void contentsResized() override;
     void scrollbarExistenceDidChange();
 
     // Override Widget methods to do point conversion via layoutObjects, in order to
     // take transforms into account.
     virtual IntRect convertToContainingView(const IntRect&) const override;
     virtual IntRect convertFromContainingView(const IntRect&) const override;
@@ skipping 222 matching lines @@
     static const unsigned visualPixelThreshold = 32 * 32;
     if (m_visuallyNonEmptyPixelCount > visualPixelThreshold)
         setIsVisuallyNonEmpty();
 }
 
 DEFINE_TYPE_CASTS(FrameView, Widget, widget, widget->isFrameView(), widget.isFrameView());
 
 } // namespace blink
 
 #endif // FrameView_h