Bug 1294161 - Add operator== overloads for comparing HandlRefPtrs to their raw Handles. r=bholley

MozReview-Commit-ID: jTQZXyNbqM

layout/style/HandleRefPtr.h

@@ -64,16 +64,6 @@ public:
   operator T() const { return mHandle; }
   T operator->() const { return mHandle; }
 
-  bool operator==(const HandleRefPtr<T>& aOther) const
-  {
-    return mHandle == aOther.mHandle;
-  }
-
-  bool operator!=(const HandleRefPtr<T>& aOther) const
-  {
-    return !(*this == aOther);
-  }
-
   void swap(HandleRefPtr<T>& aOther)
   {
     std::swap(mHandle, aOther.mHandle);
@@ -102,6 +92,42 @@ private:
   T mHandle;
 };
 
+template<typename T>
+inline bool operator==(const HandleRefPtr<T>& aLHS, const HandleRefPtr<T>& aRHS)
+{
+  return static_cast<T>(aLHS) == static_cast<T>(aRHS);
+}
+
+template<typename T>
+inline bool operator==(const HandleRefPtr<T>& aLHS, T aRHS)
+{
+  return static_cast<T>(aLHS) == aRHS;
+}
+
+template<typename T>
+inline bool operator==(T aLHS, const HandleRefPtr<T>& aRHS)
+{
+  return aLHS == static_cast<T>(aRHS);
+}
+
+template<typename T>
+inline bool operator!=(const HandleRefPtr<T>& aLHS, const HandleRefPtr<T>& aRHS)
+{
+  return !(aLHS == aRHS);
+}
+
+template<typename T>
+inline bool operator!=(const HandleRefPtr<T>& aLHS, T aRHS)
+{
+  return !(aLHS == aRHS);
+}
+
+template<typename T>
+inline bool operator!=(T aLHS, const HandleRefPtr<T>& aRHS)
+{
+  return !(aLHS == aRHS);
+}
+
 } // namespace mozilla
 
 #endif // mozilla_HandleRefPtr_h