Back out c0e237b26fe2 because it's folded. (r=#jsapi)

js/src/jscntxtinlines.h

@@ -118,34 +118,10 @@ class AutoNamespaceArray : protected AutoGCRooter {
     JSXMLArray<JSObject> array;
 };
 
-template <typename T>
-class AutoPtr
-{
-    JSContext *cx;
-    T *value;
-
-    AutoPtr(const AutoPtr &other) MOZ_DELETE;
-
-  public:
-    explicit AutoPtr(JSContext *cx) : cx(cx), value(NULL) {}
-    ~AutoPtr() {
-        cx->delete_<T>(value);
-    }
-
-    void operator=(T *ptr) { value = ptr; }
-
-    typedef void ***** ConvertibleToBool;
-    operator ConvertibleToBool() const { return (ConvertibleToBool) value; }
-
-    const T *operator->() const { return value; }
-    T *operator->() { return value; }
-
-    T *get() { return value; }
-};
-
 #ifdef DEBUG
 class CompartmentChecker
 {
+  private:
     JSContext *context;
     JSCompartment *compartment;