Remove old paint offset caching code

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

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google 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 1273 matching lines @@
 
     // Called when the previous paint invalidation rect(s) is no longer valid.
     virtual void clearPreviousPaintInvalidationRects();
 
     // Only adjusts if the paint invalidation container is not a composited scroller.
     void adjustPreviousPaintInvalidationForScrollIfNeeded(const DoubleSize& scrollDelta);
 
     // The previous position of the top-left corner of the object in its previous paint backing.
     const LayoutPoint& previousPositionFromPaintInvalidationBacking() const
     {
-        ASSERT(!RuntimeEnabledFeatures::slimmingPaintOffsetCachingEnabled());
+        ASSERT(!RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled());
         return m_previousPositionFromPaintInvalidationBacking;
     }
     void setPreviousPositionFromPaintInvalidationBacking(const LayoutPoint& positionFromPaintInvalidationBacking)
     {
-        ASSERT(!RuntimeEnabledFeatures::slimmingPaintOffsetCachingEnabled());
+        ASSERT(!RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled());
         m_previousPositionFromPaintInvalidationBacking = positionFromPaintInvalidationBacking;
     }
 
     bool paintOffsetChanged(const LayoutPoint& newPaintOffset) const
     {
-        ASSERT(RuntimeEnabledFeatures::slimmingPaintOffsetCachingEnabled());
+        ASSERT(RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled());
         return m_previousPositionFromPaintInvalidationBacking != uninitializedPaintOffset() && m_previousPositionFromPaintInvalidationBacking != newPaintOffset;
     }
     void setPreviousPaintOffset(const LayoutPoint& paintOffset)
     {
-        ASSERT(RuntimeEnabledFeatures::slimmingPaintOffsetCachingEnabled());
+        ASSERT(RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled());
         m_previousPositionFromPaintInvalidationBacking = paintOffset;
     }
 
     PaintInvalidationReason fullPaintInvalidationReason() const { return m_bitfields.fullPaintInvalidationReason(); }
     bool shouldDoFullPaintInvalidation() const { return m_bitfields.fullPaintInvalidationReason() != PaintInvalidationNone; }
     void setShouldDoFullPaintInvalidation(PaintInvalidationReason = PaintInvalidationFull);
     void clearShouldDoFullPaintInvalidation() { m_bitfields.setFullPaintInvalidationReason(PaintInvalidationNone); }
 
     bool shouldInvalidateOverflowForPaint() const { return m_bitfields.shouldInvalidateOverflowForPaint(); }
 
@@ skipping 580 matching lines @@
     // Store state between styleWillChange and styleDidChange
     static bool s_affectsParentBlock;
 
     // This stores the paint invalidation rect from the previous frame. This rect does *not* account for composited scrolling. See
     // adjustInvalidationRectForCompositedScrolling().
     LayoutRect m_previousPaintInvalidationRect;
 
     // This stores the position in the paint invalidation backing's coordinate.
     // It is used to detect layoutObject shifts that forces a full invalidation.
     // This point does *not* account for composited scrolling. See adjustInvalidationRectForCompositedScrolling().
-    // For slimmingPaintOffsetCaching, this stores the previous paint offset.
-    // TODO(wangxianzhu): Rename this to m_previousPaintOffset when we enable slimmingPaintOffsetCaching.
+    // For slimmingPaintInvalidation, this stores the previous paint offset.
+    // TODO(wangxianzhu): Rename this to m_previousPaintOffset when we enable slimmingPaintInvalidation.
     LayoutPoint m_previousPositionFromPaintInvalidationBacking;
 };
 
 // FIXME: remove this once the layout object lifecycle ASSERTS are no longer hit.
 class DeprecatedDisableModifyLayoutTreeStructureAsserts {
     STACK_ALLOCATED();
     WTF_MAKE_NONCOPYABLE(DeprecatedDisableModifyLayoutTreeStructureAsserts);
 public:
     DeprecatedDisableModifyLayoutTreeStructureAsserts();
 
@@ skipping 219 matching lines @@
 void showTree(const blink::LayoutObject*);
 void showLineTree(const blink::LayoutObject*);
 void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 void showLayoutTree(const blink::LayoutObject* object1, const blink::LayoutObject* object2);
 
 #endif
 
 #endif // LayoutObject_h