Refactor to remove need for infiniteIntRect when computing rects in pre-paint

third_party/WebKit/Source/core/paint/ClipRect.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
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  * 2. Redistributions in binary form must reproduce the above copyright
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  *
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  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 #ifndef ClipRect_h
 #define ClipRect_h
 
 #include "platform/geometry/LayoutRect.h"
+#include "platform/graphics/paint/FloatClipRect.h"
 #include "wtf/Allocator.h"
 
 namespace blink {
 
 class HitTestLocation;
 
 class ClipRect {
   USING_FAST_MALLOC(ClipRect);
 
  public:
   ClipRect() : m_hasRadius(false), m_isClippedByClipCss(false) {}
 
   ClipRect(const LayoutRect& rect)
       : m_rect(rect), m_hasRadius(false), m_isClippedByClipCss(false) {}
 
+  ClipRect(const FloatClipRect& rect)
+      : m_rect(LayoutRect(rect.rect())),
+        m_hasRadius(rect.hasRadius()),
+        m_isClippedByClipCss(false) {}
+
   const LayoutRect& rect() const { return m_rect; }
 
   bool hasRadius() const { return m_hasRadius; }
   void setHasRadius(bool hasRadius) { m_hasRadius = hasRadius; }
 
   bool operator==(const ClipRect& other) const {
     return rect() == other.rect() && hasRadius() == other.hasRadius();
   }
   bool operator!=(const ClipRect& other) const {
     return rect() != other.rect() || hasRadius() != other.hasRadius();
@@ skipping 32 matching lines @@
 
 inline ClipRect intersection(const ClipRect& a, const ClipRect& b) {
   ClipRect c = a;
   c.intersect(b);
   return c;
 }
 
 }  // namespace blink
 
 #endif  // ClipRect_h