Revert of Add StyleDifference::needsVisualRectUpdate

third_party/WebKit/Source/core/style/StyleDifference.h

Index: third_party/WebKit/Source/core/style/StyleDifference.h
diff --git a/third_party/WebKit/Source/core/style/StyleDifference.h b/third_party/WebKit/Source/core/style/StyleDifference.h
index b7756955b884a12e4c90933757836312826af685..64d62ac5b1f4a488f47af701dfcf7a86cffe2bad 100644
--- a/third_party/WebKit/Source/core/style/StyleDifference.h
+++ b/third_party/WebKit/Source/core/style/StyleDifference.h
@@ -24,7 +24,6 @@
     // The object needs to issue paint invalidations if it is affected by text
     // decorations or properties dependent on color (e.g., border or outline).
     TextDecorationOrColorChanged = 1 << 6,
-    ScrollAnchorDisablingPropertyChanged = 1 << 7,
     // If you add a value here, be sure to update the number of bits on
     // m_propertySpecificDifferences.
   };
@@ -33,13 +32,17 @@
       : m_paintInvalidationType(NoPaintInvalidation),
         m_layoutType(NoLayout),
         m_recomputeOverflow(false),
-        m_visualRectUpdate(false),
-        m_propertySpecificDifferences(0) {}
+        m_propertySpecificDifferences(0),
+        m_scrollAnchorDisablingPropertyChanged(false) {}
 
   bool hasDifference() const {
-    return m_paintInvalidationType || m_layoutType ||
-           m_propertySpecificDifferences || m_recomputeOverflow ||
-           m_visualRectUpdate;
+    bool result = m_paintInvalidationType || m_layoutType ||
+                  m_propertySpecificDifferences;
+    // m_recomputeOverflow, m_scrollAnchorDisablingPropertyChanged and
+    // are never set without other flags set.
+    DCHECK(result ||
+           (!m_recomputeOverflow && !m_scrollAnchorDisablingPropertyChanged));
+    return result;
   }
 
   bool hasAtMostPropertySpecificDifferences(
@@ -87,9 +90,6 @@
   bool needsRecomputeOverflow() const { return m_recomputeOverflow; }
   void setNeedsRecomputeOverflow() { m_recomputeOverflow = true; }
 
-  bool needsVisualRectUpdate() const { return m_visualRectUpdate; }
-  void setNeedsVisualRectUpdate() { m_visualRectUpdate = true; }
-
   bool transformChanged() const {
     return m_propertySpecificDifferences & TransformChanged;
   }
@@ -132,10 +132,10 @@
   }
 
   bool scrollAnchorDisablingPropertyChanged() const {
-    return m_propertySpecificDifferences & ScrollAnchorDisablingPropertyChanged;
+    return m_scrollAnchorDisablingPropertyChanged;
   }
   void setScrollAnchorDisablingPropertyChanged() {
-    m_propertySpecificDifferences |= ScrollAnchorDisablingPropertyChanged;
+    m_scrollAnchorDisablingPropertyChanged = true;
   }
 
  private:
@@ -149,8 +149,8 @@
   enum LayoutType { NoLayout = 0, PositionedMovement, FullLayout };
   unsigned m_layoutType : 2;
   unsigned m_recomputeOverflow : 1;
-  unsigned m_visualRectUpdate : 1;
-  unsigned m_propertySpecificDifferences : 8;
+  unsigned m_propertySpecificDifferences : 7;
+  unsigned m_scrollAnchorDisablingPropertyChanged : 1;
 };
 
 }  // namespace blink