Remove cached bounds in RenderLayer.

Source/core/rendering/RenderLayer.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 117 matching lines @@
     const RenderLayerReflectionInfo* reflectionInfo() const { return m_reflectionInfo.get(); }
 
     const RenderLayer* root() const
     {
         const RenderLayer* curr = this;
         while (curr->parent())
             curr = curr->parent();
         return curr;
     }
 
-    const LayoutPoint& location() const { ASSERT(!m_needsPositionUpdate); return m_location; }
-    // FIXME: size() should ASSERT(!m_needsPositionUpdate) as well, but that fails in some tests,
-    // for example, fast/repaint/clipped-relative.html.
-    const IntSize& size() const { return m_size; }
-    void setSizeHackForRenderTreeAsText(const IntSize& size) { m_size = size; }
+    const LayoutPoint location() const;
+    const IntSize size() const;
 
     LayoutRect rect() const { return LayoutRect(location(), size()); }
 
     bool isRootLayer() const { return m_isRootLayer; }
 
     RenderLayerCompositor* compositor() const;
 
     // Notification from the renderer that its content changed (e.g. current frame of image changed).
     // Allows updates of layer content without invalidating paint.
     void contentChanged(ContentChangeType);
 
     void updateLayerPositionsAfterLayout();
-    void updateLayerPositionsAfterOverflowScroll();
 
     bool isPaginated() const { return m_isPaginated; }
     RenderLayer* enclosingPaginationLayer() const { return m_enclosingPaginationLayer; }
 
     void updateTransformationMatrix();
     RenderLayer* renderingContextRoot();
 
-    const LayoutSize& offsetForInFlowPosition() const { return m_offsetForInFlowPosition; }
+    // Our current relative position offset.
+    const LayoutSize offsetForInFlowPosition() const;
 
     void blockSelectionGapsBoundsChanged();
     void addBlockSelectionGapsBounds(const LayoutRect&);
     void clearBlockSelectionGapsBounds();
     void invalidatePaintForBlockSelectionGaps();
     IntRect blockSelectionGapsBounds() const;
     bool hasBlockSelectionGapBounds() const;
 
     RenderLayerStackingNode* stackingNode() { return m_stackingNode.get(); }
     const RenderLayerStackingNode* stackingNode() const { return m_stackingNode.get(); }
@@ skipping 371 matching lines @@
     LayoutRect logicalBoundingBox() const;
 
     bool hasOverflowControls() const;
 
     void setAncestorChainHasSelfPaintingLayerDescendant();
     void dirtyAncestorChainHasSelfPaintingLayerDescendantStatus();
 
     void clipToRect(const LayerPaintingInfo&, GraphicsContext*, const ClipRect&, PaintLayerFlags, BorderRadiusClippingRule = IncludeSelfForBorderRadius);
     void restoreClip(GraphicsContext*, const LayoutRect& paintDirtyRect, const ClipRect&);
 
-    // Returns true if the position changed.
-    bool updateLayerPosition();
-
     void updateLayerPositionRecursive();
-    void updateLayerPositionsAfterScrollRecursive();
 
     void setNextSibling(RenderLayer* next) { m_next = next; }
     void setPreviousSibling(RenderLayer* prev) { m_previous = prev; }
     void setFirstChild(RenderLayer* first) { m_first = first; }
     void setLastChild(RenderLayer* last) { m_last = last; }
 
     LayoutPoint renderBoxLocation() const { return renderer()->isBox() ? toRenderBox(renderer())->location() : LayoutPoint(); }
 
     void paintLayerContentsAndReflection(GraphicsContext*, const LayerPaintingInfo&, PaintLayerFlags);
     void paintLayerByApplyingTransform(GraphicsContext*, const LayerPaintingInfo&, PaintLayerFlags, const LayoutPoint& translationOffset = LayoutPoint());
@@ skipping 106 matching lines @@
 
     unsigned m_visibleContentStatusDirty : 1;
     unsigned m_hasVisibleContent : 1;
     unsigned m_visibleDescendantStatusDirty : 1;
     unsigned m_hasVisibleDescendant : 1;
 
     unsigned m_hasVisibleNonLayerContent : 1;
 
     unsigned m_isPaginated : 1; // If we think this layer is split by a multi-column ancestor, then this bit will be set.
 
-#if ENABLE(ASSERT)
-    unsigned m_needsPositionUpdate : 1;
-#endif
-
     unsigned m_3DTransformedDescendantStatusDirty : 1;
     // Set on a stacking context layer that has 3D descendants anywhere
     // in a preserves3D hierarchy. Hint to do 3D-aware hit testing.
     unsigned m_has3DTransformedDescendant : 1;
 
     unsigned m_containsDirtyOverlayScrollbars : 1;
 
     unsigned m_hasFilterInfo : 1;
     unsigned m_needsAncestorDependentCompositingInputsUpdate : 1;
     unsigned m_needsDescendantDependentCompositingInputsUpdate : 1;
@@ skipping 17 matching lines @@
     unsigned m_viewportConstrainedNotCompositedReason : ViewportConstrainedNotCompositedReasonBits;
 
     RenderLayerModelObject* m_renderer;
 
     RenderLayer* m_parent;
     RenderLayer* m_previous;
     RenderLayer* m_next;
     RenderLayer* m_first;
     RenderLayer* m_last;
 
-    // Our current relative position offset.
-    LayoutSize m_offsetForInFlowPosition;
-
-    // Our (x,y) coordinates are in our parent layer's coordinate space.
-    LayoutPoint m_location;
-
-    // The layer's width/height
-    IntSize m_size;
-
     // Cached normal flow values for absolute positioned elements with static left/top values.
     LayoutUnit m_staticInlinePosition;
     LayoutUnit m_staticBlockPosition;
 
     OwnPtr<TransformationMatrix> m_transform;
 
     // Pointer to the enclosing RenderLayer that caused us to be paginated. It is 0 if we are not paginated.
     RenderLayer* m_enclosingPaginationLayer;
 
     // These compositing reasons are updated whenever style changes, not while updating compositing layers.
@@ skipping 24 matching lines @@
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showLayerTree(const blink::RenderLayer*);
 void showLayerTree(const blink::RenderObject*);
 #endif
 
 #endif // RenderLayer_h