Bug 1147766 - Part 2: Replace FixedStyleStructArray with mozilla::RangedArray. r=dbaron

layout/style/nsRuleNode.h

@@ -11,6 +11,7 @@
 #ifndef nsRuleNode_h___
 #define nsRuleNode_h___
 
+#include "mozilla/RangedArray.h"
 #include "nsPresContext.h"
 #include "nsStyleStruct.h"
 
@@ -24,29 +25,11 @@ class nsCSSValue;
 class nsStyleCoord;
 struct nsCSSValuePairList;
 
-template <nsStyleStructID MinIndex, nsStyleStructID Count>
-class FixedStyleStructArray
-{
-private:
-  void* mArray[Count];
-public:
-  void*& operator[](nsStyleStructID aIndex) {
-    MOZ_ASSERT(MinIndex <= aIndex && aIndex < (MinIndex + Count),
-               "out of range");
-    return mArray[aIndex - MinIndex];
-  }
-
-  const void* operator[](nsStyleStructID aIndex) const {
-    MOZ_ASSERT(MinIndex <= aIndex && aIndex < (MinIndex + Count),
-               "out of range");
-    return mArray[aIndex - MinIndex];
-  }
-};
-
 struct nsInheritedStyleData
 {
-  FixedStyleStructArray<nsStyleStructID_Inherited_Start,
-                        nsStyleStructID_Inherited_Count> mStyleStructs;
+  mozilla::RangedArray<void*,
+                       nsStyleStructID_Inherited_Start,
+                       nsStyleStructID_Inherited_Count> mStyleStructs;
 
   void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
     return aContext->PresShell()->
@@ -83,8 +66,9 @@ struct nsInheritedStyleData
 
 struct nsResetStyleData
 {
-  FixedStyleStructArray<nsStyleStructID_Reset_Start,
-                        nsStyleStructID_Reset_Count> mStyleStructs;
+  mozilla::RangedArray<void*,
+                       nsStyleStructID_Reset_Start,
+                       nsStyleStructID_Reset_Count> mStyleStructs;
 
   nsResetStyleData()
   {