VisualRectMappingTest

third_party/WebKit/Source/core/layout/PaintInvalidationState.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PaintInvalidationState_h
 #define PaintInvalidationState_h
 
+#include "core/CoreExport.h"
 #include "platform/geometry/LayoutRect.h"
 #include "platform/transforms/AffineTransform.h"
 #include "wtf/Allocator.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 
 class LayoutBoxModelObject;
 class LayoutObject;
 class LayoutSVGModelObject;
@@ skipping 10 matching lines @@
 //
 // This class is extremely close to LayoutState so see the documentation
 // of LayoutState for the class existence and performance benefits.
 //
 // The main difference with LayoutState is that it was customized for the
 // needs of the paint invalidation systems (keeping visual rectangles
 // instead of layout specific information).
 //
 // See Source/core/paint/README.md ### PaintInvalidationState for more details.
 
-class PaintInvalidationState {
+class CORE_EXPORT PaintInvalidationState {
     DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
     WTF_MAKE_NONCOPYABLE(PaintInvalidationState);
 public:
     PaintInvalidationState(const PaintInvalidationState& parentState, const LayoutObject&);
 
     // For root LayoutView, or when sub-frame LayoutView's invalidateTreeIfNeeded() is called directly from
     // FrameView::invalidateTreeIfNeededRecursive() instead of the owner LayoutPart.
     // TODO(wangxianzhu): Eliminate the latter case.
     PaintInvalidationState(const LayoutView&, Vector<LayoutObject*>& pendingDelayedPaintInvalidations);
 
@@ skipping 25 matching lines @@
     void pushDelayedPaintInvalidationTarget(LayoutObject& obj) const { m_pendingDelayedPaintInvalidations.append(&obj); }
     Vector<LayoutObject*>& pendingDelayedPaintInvalidationTargets() const { return m_pendingDelayedPaintInvalidations; }
 
     PaintLayer& enclosingSelfPaintingLayer(const LayoutObject&) const;
 
 #if ENABLE(ASSERT)
     const LayoutObject& currentObject() const { return m_currentObject; }
 #endif
 
 private:
+    friend class VisualRectMappingTest;
+
     void updateForNormalChildren();
 
     LayoutRect computePaintInvalidationRectInBackingForSVG() const;
 
     void addClipRectRelativeToPaintOffset(const LayoutRect& localClipRect);
 
-    friend class ForceHorriblySlowRectMapping;
-
     const LayoutObject& m_currentObject;
 
     bool m_forcedSubtreeInvalidationWithinContainer;
     bool m_forcedSubtreeInvalidationRectUpdateWithinContainer;
 
     bool m_clipped;
     bool m_clippedForAbsolutePosition;
 
     // Clip rect from paintInvalidationContainer if m_cachedOffsetsEnabled is true.
     LayoutRect m_clipRect;
     LayoutRect m_clipRectForAbsolutePosition;
 
     // x/y offset from the paintInvalidationContainer if m_cachedOffsetsEnabled is true.
     // It includes relative positioning and scroll offsets.
     LayoutSize m_paintOffset;
     LayoutSize m_paintOffsetForAbsolutePosition;
 
     // Whether m_paintOffset[XXX] and m_clipRect[XXX] are valid and can be used
     // to map a rect from space of the current object to space of paintInvalidationContainer.
-    mutable bool m_cachedOffsetsEnabled;
+    bool m_cachedOffsetsEnabled;
     bool m_cachedOffsetsForAbsolutePositionEnabled;
 
     // The following two fields are never null. Declare them as pointers because we need some
     // logic to initialize them in the body of the constructor.
 
     // The current paint invalidation container for normal flow objects.
     // It is the enclosing composited object.
     const LayoutBoxModelObject* m_paintInvalidationContainer;
 
     // The current paint invalidation container for stacked contents (stacking contexts or positioned objects).
@@ skipping 14 matching lines @@
     PaintLayer& m_enclosingSelfPaintingLayer;
 
 #if ENABLE(ASSERT)
     bool m_didUpdateForChildren;
 #endif
 };
 
 } // namespace blink
 
 #endif // PaintInvalidationState_h