Changed EPosition to an enum class and renamed its members

third_party/WebKit/Source/core/paint/PaintLayerClipper.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. 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 40 matching lines @@
 #include "core/paint/PaintLayer.h"
 
 namespace blink {
 
 static void adjustClipRectsForChildren(const LayoutBoxModelObject& layoutObject,
                                        ClipRects& clipRects) {
   EPosition position = layoutObject.styleRef().position();
   // A fixed object is essentially the root of its containing block hierarchy,
   // so when we encounter such an object, we reset our clip rects to the
   // fixedClipRect.
-  if (position == FixedPosition) {
+  if (position == EPosition::kFixed) {
     clipRects.setPosClipRect(clipRects.fixedClipRect());
     clipRects.setOverflowClipRect(clipRects.fixedClipRect());
     clipRects.setFixed(true);
-  } else if (position == RelativePosition) {
+  } else if (position == EPosition::kRelative) {
     clipRects.setPosClipRect(clipRects.overflowClipRect());
-  } else if (position == AbsolutePosition) {
+  } else if (position == EPosition::kAbsolute) {
     clipRects.setOverflowClipRect(clipRects.posClipRect());
   }
 }
 
 static void applyClipRects(const ClipRectsContext& context,
                            const LayoutBoxModelObject& layoutObject,
                            LayoutPoint offset,
                            ClipRects& clipRects) {
   DCHECK(layoutObject.isBox());
   const LayoutBox& box = *toLayoutBox(&layoutObject);
@@ skipping 338 matching lines @@
     // space.
     applyClipRects(context, layoutObject,
                    LayoutPoint(layoutObject.localToAncestorPoint(
                        FloatPoint(), context.rootLayer->layoutObject())),
                    clipRects);
   }
 }
 
 static ClipRect backgroundClipRectForPosition(const ClipRects& parentRects,
                                               EPosition position) {
-  if (position == FixedPosition)
+  if (position == EPosition::kFixed)
     return parentRects.fixedClipRect();
 
-  if (position == AbsolutePosition)
+  if (position == EPosition::kAbsolute)
     return parentRects.posClipRect();
 
   return parentRects.overflowClipRect();
 }
 
 ClipRect PaintLayerClipper::clipRectWithGeometryMapper(
     const ClipRectsContext& context,
     bool isForeground) const {
   DCHECK(m_geometryMapper);
   LayoutRect source(LayoutRect::infiniteIntRect());
@@ skipping 135 matching lines @@
     const LayoutSize& subpixelAccumulation) const {
   DCHECK(!m_geometryMapper);
   ClipRectsContext context(rootLayer, PaintingClipRects,
                            IgnoreOverlayScrollbarSize, subpixelAccumulation);
   if (respectOverflowClip == IgnoreOverflowClip)
     context.setIgnoreOverflowClip();
   return getClipRects(context);
 }
 
 }  // namespace blink