Make wrapperTypeInfo static member const in bindings classes

Source/bindings/v8/V8GCController.cpp

Index: Source/bindings/v8/V8GCController.cpp
diff --git a/Source/bindings/v8/V8GCController.cpp b/Source/bindings/v8/V8GCController.cpp
index 76a1f26fa78b59c867e3f8004e54cbc7f0c000ae..14779ed5953c2c0ee2f87ea2e907b989f0b888b9 100644
--- a/Source/bindings/v8/V8GCController.cpp
+++ b/Source/bindings/v8/V8GCController.cpp
@@ -128,7 +128,7 @@ public:
         // Note that node->wrapper().IsEmpty() returns true for nodes that
         // do not have wrappers in the main world.
         if (node->containsWrapper()) {
-            WrapperTypeInfo* type = toWrapperTypeInfo(*wrapper);
+            const WrapperTypeInfo* type = toWrapperTypeInfo(*wrapper);
             ActiveDOMObject* activeDOMObject = type->toActiveDOMObject(*wrapper);
             if (activeDOMObject && activeDOMObject->hasPendingActivity())
                 return;
@@ -245,7 +245,7 @@ public:
         if (value->IsIndependent())
             return;
 
-        WrapperTypeInfo* type = toWrapperTypeInfo(*wrapper);
+        const WrapperTypeInfo* type = toWrapperTypeInfo(*wrapper);
         void* object = toNative(*wrapper);
 
         if (V8MessagePort::wrapperTypeInfo.equals(type)) {