Bug 1262359 (part 5) - Add a missing rv check for call to nsDataHandler::ParseURI(). r=jduell.

--HG--
extra : rebase_source : 785b8b0bb91c73f6dc4c1b0b237617ff68010819

netwerk/protocol/data/nsDataChannel.cpp

@@ -33,6 +33,8 @@ nsDataChannel::OpenContentStream(bool async, nsIInputStream **result,
     bool lBase64;
     rv = nsDataHandler::ParseURI(spec, contentType, &contentCharset,
                                  lBase64, &dataBuffer);
+    if (NS_FAILED(rv))
+        return rv;
 
     NS_UnescapeURL(dataBuffer);