1 files changed, 52 insertions, 0 deletions
diff --git a/netwerk/streamconv/test/Converters.h b/netwerk/streamconv/test/Converters.h
new file mode 100644
index 000000000..d7203262c
--- /dev/null
+++ b/netwerk/streamconv/test/Converters.h
@@ -0,0 +1,52 @@
+#ifndef Converters_h___
+#define Converters_h___
+
+#include "nsIStreamConverter.h"
+#include "nsIFactory.h"
+#include "nsCOMPtr.h"
+#include "nsStringAPI.h"
+
+#include <algorithm>
+
+/* This file defines stream converter components, and their accompanying factory class.
+ * These converters implement the nsIStreamConverter interface and support both
+ * asynchronous and synchronous stream conversion.
+ */
+
+///////////////////////////////////////////////
+// TestConverter
+
+extern const nsCID kTestConverterCID;
+
+class TestConverter : public nsIStreamConverter {
+    virtual ~TestConverter() {}
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIREQUESTOBSERVER
+    NS_DECL_NSISTREAMLISTENER
+
+    TestConverter();
+
+    // nsIStreamConverter methods
+    NS_IMETHOD Convert(nsIInputStream *aFromStream, const char *aFromType, 
+                       const char *aToType, nsISupports *ctxt, nsIInputStream **_retval) override;
+
+
+    NS_IMETHOD AsyncConvertData(const char *aFromType, const char *aToType, 
+                                nsIStreamListener *aListener, nsISupports *ctxt) override;
+
+    // member data
+    nsCOMPtr<nsIStreamListener> mListener;
+    nsCString fromType;
+    nsCString toType;
+};
+
+nsresult CreateTestConverter(nsISupports* aOuter, REFNSIID aIID, void** aResult);
+
+static inline uint32_t
+saturated(uint64_t aValue)
+{
+    return (uint32_t) std::min(aValue, (uint64_t) UINT32_MAX);
+}
+
+#endif /* !Converters_h___ */