Use toCSSFooValue() instead of using static_cast<const CSSFooValue*>

Source/core/css/CSSImageGeneratorValue.cpp

 /*
  * Copyright (C) 2008 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 109 matching lines @@
     default:
         ASSERT_NOT_REACHED();
     }
     return 0;
 }
 
 bool CSSImageGeneratorValue::isFixedSize() const
 {
     switch (classType()) {
     case CanvasClass:
-        return static_cast<const CSSCanvasValue*>(this)->isFixedSize();
+        return toCSSCanvasValue(this)->isFixedSize();
     case CrossfadeClass:
-        return static_cast<const CSSCrossfadeValue*>(this)->isFixedSize();
+        return toCSSCrossfadeValue(this)->isFixedSize();
     case LinearGradientClass:
-        return static_cast<const CSSLinearGradientValue*>(this)->isFixedSize();
+        return toCSSLinearGradientValue(this)->isFixedSize();
     case RadialGradientClass:
-        return static_cast<const CSSRadialGradientValue*>(this)->isFixedSize();
+        return toCSSRadialGradientValue(this)->isFixedSize();
     default:
         ASSERT_NOT_REACHED();
     }
     return false;
 }
 
 IntSize CSSImageGeneratorValue::fixedSize(const RenderObject* renderer)
 {
     switch (classType()) {
     case CanvasClass:
         return toCSSCanvasValue(this)->fixedSize(renderer);
     case CrossfadeClass:
         return toCSSCrossfadeValue(this)->fixedSize(renderer);
     case LinearGradientClass:
         return toCSSLinearGradientValue(this)->fixedSize(renderer);
     case RadialGradientClass:
         return toCSSRadialGradientValue(this)->fixedSize(renderer);
     default:
         ASSERT_NOT_REACHED();
     }
     return IntSize();
 }
 
 bool CSSImageGeneratorValue::isPending() const
 {
     switch (classType()) {
     case CrossfadeClass:
-        return static_cast<const CSSCrossfadeValue*>(this)->isPending();
+        return toCSSCrossfadeValue(this)->isPending();
     case CanvasClass:
-        return static_cast<const CSSCanvasValue*>(this)->isPending();
+        return toCSSCanvasValue(this)->isPending();
     case LinearGradientClass:
-        return static_cast<const CSSLinearGradientValue*>(this)->isPending();
+        return toCSSLinearGradientValue(this)->isPending();
     case RadialGradientClass:
-        return static_cast<const CSSRadialGradientValue*>(this)->isPending();
+        return toCSSRadialGradientValue(this)->isPending();
     default:
         ASSERT_NOT_REACHED();
     }
     return false;
 }
 
 bool CSSImageGeneratorValue::knownToBeOpaque(const RenderObject* renderer) const
 {
     switch (classType()) {
     case CrossfadeClass:
-        return static_cast<const CSSCrossfadeValue*>(this)->knownToBeOpaque(renderer);
+        return toCSSCrossfadeValue(this)->knownToBeOpaque(renderer);
     case CanvasClass:
         return false;
     case LinearGradientClass:
-        return static_cast<const CSSLinearGradientValue*>(this)->knownToBeOpaque(renderer);
+        return toCSSLinearGradientValue(this)->knownToBeOpaque(renderer);
     case RadialGradientClass:
-        return static_cast<const CSSRadialGradientValue*>(this)->knownToBeOpaque(renderer);
+        return toCSSRadialGradientValue(this)->knownToBeOpaque(renderer);
     default:
         ASSERT_NOT_REACHED();
     }
     return false;
 }
 
 void CSSImageGeneratorValue::loadSubimages(ResourceFetcher* fetcher)
 {
     switch (classType()) {
     case CrossfadeClass:
         toCSSCrossfadeValue(this)->loadSubimages(fetcher);
         break;
     case CanvasClass:
         toCSSCanvasValue(this)->loadSubimages(fetcher);
         break;
     case LinearGradientClass:
         toCSSLinearGradientValue(this)->loadSubimages(fetcher);
         break;
     case RadialGradientClass:
         toCSSRadialGradientValue(this)->loadSubimages(fetcher);
         break;
     default:
         ASSERT_NOT_REACHED();
     }
 }
 
 } // namespace WebCore