Bamboo cannot parse Google unit tests xUnit results files

I have a results XML file which is created by google test (a C++ unit testing framework https://code.google.com/p/googletest/). Apparently this file is xUnit compatible xml. When I try to get Bamboo's Junit parser to consume the file I get an error

08-Apr-2013 09:48:16 Starting task 'Parse results' of type 'com.atlassian.bamboo.plugins.testresultparser:task.testresultparser.junit'
08-Apr-2013 09:48:16 Parsing test results...
08-Apr-2013 09:48:16 Failing task since test cases were expected but none were found.

See the attached results file for the xml.

It would be nice to have a xUnit plug-in to parse generic xUnit results files.

Also there is an open StackOverflow question on this issue http://stackoverflow.com/questions/15761906/bamboos-junit-parser-wont-parse-my-gtest-output-xml/15875297#15875297