Breakpad Linux dumper: Add unit tests for google_breakpad::Module.

Adjust Module's interface a bit to facilitate testing:
- Make AssignSourceIds something a client can call --- it's perfectly
  well-defined, so this is an okay change.
- Add GetFunctions, GetFiles and FindExistingfile member functions,
  which the test harness will use to get results to examine.

a=jimblandy, r=nealsid


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@466 4c0a9323-5329-0410-9bdc-e9ce6186880e
4 files changed