Don't call LayoutPart::widgetPositionsUpdated unnecessarily.

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 109 matching lines @@
     bool isInPerformLayout() const;
 
     void clearLayoutSubtreeRoot(const LayoutObject&);
     int layoutCount() const { return m_layoutCount; }
 
     void countObjectsNeedingLayout(unsigned& needsLayoutObjects, unsigned& totalObjects, bool& isPartial);
 
     bool needsLayout() const;
     void setNeedsLayout();
 
-    void setNeedsUpdateWidgetPositions() { m_needsUpdateWidgetPositions = true; }
+    void setNeedsUpdateWidgetGeometries() { m_needsUpdateWidgetGeometries = true; }
 
     // Methods for getting/setting the size Blink should use to layout the contents.
     // NOTE: Scrollbar exclusion is based on the FrameView's scrollbars. To exclude
     // scrollbars on the root PaintLayer, use LayoutView::layoutSize.
     IntSize layoutSize(IncludeScrollbarsInRect = ExcludeScrollbars) const;
     void setLayoutSize(const IntSize&);
 
     // If this is set to false, the layout size will need to be explicitly set by the owner.
     // E.g. WebViewImpl sets its mainFrame's layout size manually
     void setLayoutSizeFixedToFrameSize(bool isFixed) { m_layoutSizeFixedToFrameSize = isFixed; }
@@ skipping 67 matching lines @@
     void restoreScrollbar();
 
     void postLayoutTimerFired(Timer<FrameView>*);
 
     bool safeToPropagateScrollToParent() const { return m_safeToPropagateScrollToParent; }
     void setSafeToPropagateScrollToParent(bool isSafe) { m_safeToPropagateScrollToParent = isSafe; }
 
     void addPart(LayoutPart*);
     void removePart(LayoutPart*);
 
-    void updateWidgetPositions();
+    void updateWidgetGeometries();
 
     void addPartToUpdate(LayoutEmbeddedObject&);
 
     void setIsPainting(bool val) const { m_isPainting = val; }
     bool isPainting() const;
 
     void setNodeToDraw(Node*);
     Node* nodeToDraw() const { return m_nodeToDraw.get(); }
 
     Color documentBackgroundColor() const;
@@ skipping 443 matching lines @@
     void contentsResized() override;
     void scrollbarExistenceDidChange();
 
     // Override Widget methods to do point conversion via layoutObjects, in order to
     // take transforms into account.
     IntRect convertToContainingWidget(const IntRect&) const override;
     IntRect convertFromContainingWidget(const IntRect&) const override;
     IntPoint convertToContainingWidget(const IntPoint&) const override;
     IntPoint convertFromContainingWidget(const IntPoint&) const override;
 
-    void updateWidgetPositionsIfNeeded();
+    void updateWidgetGeometriesIfNeeded();
 
     bool wasViewportResized();
     void sendResizeEventIfNeeded();
 
     void updateScrollableAreaSet();
 
     void scheduleUpdateWidgetsIfNecessary();
     void updateWidgetsTimerFired(Timer<FrameView>*);
     bool updateWidgets();
 
@@ skipping 137 matching lines @@
 
     IntSize m_layoutSize;
     bool m_layoutSizeFixedToFrameSize;
 
     Timer<FrameView> m_didScrollTimer;
 
     Vector<IntRect> m_tickmarks;
 
     float m_topControlsViewportAdjustment;
 
-    bool m_needsUpdateWidgetPositions;
+    bool m_needsUpdateWidgetGeometries;
     bool m_needsUpdateViewportIntersection;
     bool m_needsUpdateViewportIntersectionInSubtree;
 
 #if ENABLE(ASSERT)
     // Verified when finalizing.
     bool m_hasBeenDisposed;
 #endif
 
     RefPtrWillBeMember<Scrollbar> m_horizontalScrollbar;
     RefPtrWillBeMember<Scrollbar> m_verticalScrollbar;
@@ skipping 71 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