Remove StyleDifference::needsPaintPropertyUpdate()

third_party/WebKit/Source/core/style/StyleDifference.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 StyleDifference_h
 #define StyleDifference_h
 
 #include "wtf/Allocator.h"
 #include "wtf/Assertions.h"
 
@@ skipping 15 matching lines @@
     TextDecorationOrColorChanged = 1 << 6,
     // If you add a value here, be sure to update the number of bits on
     // m_propertySpecificDifferences.
   };
 
   StyleDifference()
       : m_paintInvalidationType(NoPaintInvalidation),
         m_layoutType(NoLayout),
         m_recomputeOverflow(false),
         m_propertySpecificDifferences(0),
-        m_scrollAnchorDisablingPropertyChanged(false),
-        m_needsPaintPropertyUpdate(false) {}
+        m_scrollAnchorDisablingPropertyChanged(false) {}
 
   bool hasDifference() const {
     bool result = m_paintInvalidationType || m_layoutType ||
                   m_propertySpecificDifferences;
     // m_recomputeOverflow, m_scrollAnchorDisablingPropertyChanged and
-    // m_needsPaintPropertyUpdate are never set without other flags set.
+    // are never set without other flags set.
     DCHECK(result ||
-           (!m_recomputeOverflow && !m_scrollAnchorDisablingPropertyChanged &&
-            !m_needsPaintPropertyUpdate));
+           (!m_recomputeOverflow && !m_scrollAnchorDisablingPropertyChanged));
     return result;
   }
 
   bool hasAtMostPropertySpecificDifferences(
       unsigned propertyDifferences) const {
     return !m_paintInvalidationType && !m_layoutType &&
            !(m_propertySpecificDifferences & ~propertyDifferences);
   }
 
   bool needsPaintInvalidation() const {
@@ skipping 76 matching lines @@
     m_propertySpecificDifferences |= TextDecorationOrColorChanged;
   }
 
   bool scrollAnchorDisablingPropertyChanged() const {
     return m_scrollAnchorDisablingPropertyChanged;
   }
   void setScrollAnchorDisablingPropertyChanged() {
     m_scrollAnchorDisablingPropertyChanged = true;
   }
 
-  bool needsPaintPropertyUpdate() const { return m_needsPaintPropertyUpdate; }
-  void setNeedsPaintPropertyUpdate() { m_needsPaintPropertyUpdate = true; }
-
  private:
   enum PaintInvalidationType {
     NoPaintInvalidation = 0,
     PaintInvalidationObject,
     PaintInvalidationSubtree
   };
   unsigned m_paintInvalidationType : 2;
 
   enum LayoutType { NoLayout = 0, PositionedMovement, FullLayout };
   unsigned m_layoutType : 2;
   unsigned m_recomputeOverflow : 1;
   unsigned m_propertySpecificDifferences : 7;
   unsigned m_scrollAnchorDisablingPropertyChanged : 1;
-  unsigned m_needsPaintPropertyUpdate : 1;
 };
 
 }  // namespace blink
 
 #endif  // StyleDifference_h