Saturated arithmetic changed to use templates to fix build-issues

Source/wtf/SaturatedArithmetic.h

Index: Source/wtf/SaturatedArithmetic.h
diff --git a/Source/wtf/SaturatedArithmetic.h b/Source/wtf/SaturatedArithmetic.h
index ff4ecb3619ec9c15f0def09274a2eaa29134dc21..9cc561e8a8c7511721e9935ca81511b8ba2b5f76 100644
--- a/Source/wtf/SaturatedArithmetic.h
+++ b/Source/wtf/SaturatedArithmetic.h
@@ -86,13 +86,18 @@ inline int getMinSaturatedSetResultForTesting(int FractionalShift)
     return std::numeric_limits<int>::min();
 }
 
-ALWAYS_INLINE int saturatedSet(int value, int FractionalShift)
+template<size_t saturate, size_t fractionalShift>
+ALWAYS_INLINE int saturatedSetSigned(int value)
 {
+    // This function is implemented as a template to make a common interface
+    // for this and the ARM version, which will only compile under all compilers
+    // if it is implemented as a template specialized with constants.
+
     const int intMaxForLayoutUnit =
-        std::numeric_limits<int>::max() >> FractionalShift;
+        std::numeric_limits<int>::max() >> fractionalShift;
 
     const int intMinForLayoutUnit =
-        std::numeric_limits<int>::min() >> FractionalShift;
+        std::numeric_limits<int>::min() >> fractionalShift;
 
     if (value > intMaxForLayoutUnit)
         return std::numeric_limits<int>::max();
@@ -100,19 +105,23 @@ ALWAYS_INLINE int saturatedSet(int value, int FractionalShift)
     if (value < intMinForLayoutUnit)
         return std::numeric_limits<int>::min();
 
-    return value << FractionalShift;
+    return value << fractionalShift;
 }
 
-
-ALWAYS_INLINE int saturatedSet(unsigned value, int FractionalShift)
+template<size_t saturate, size_t fractionalShift>
+ALWAYS_INLINE int saturatedSetUnsigned(unsigned value)
 {
+    // This function is implemented as a template to make a common interface
+    // for this and the ARM version, which will only compile under all compilers
+    // if it is implemented as a template specialized with constants.
+
     const unsigned intMaxForLayoutUnit =
-        std::numeric_limits<int>::max() >> FractionalShift;
+        std::numeric_limits<int>::max() >> fractionalShift;
 
     if (value >= intMaxForLayoutUnit)
         return std::numeric_limits<int>::max();
 
-    return value << FractionalShift;
+    return value << fractionalShift;
 }
 
 #endif // CPU(ARM) && COMPILER(GCC)