Fix bomb when showing differences between two diff versions
Review Request #6297 — Created Sept. 4, 2014 and submitted — Latest diff uploaded
Fix crash when trying to show the differerence between two versions of a patch (e.g. with a URL like r/31/diff/2-3/). RawFileDiffData was passing self.binary to tool.get_parser(), which fails because
the buffer object has no splitlines() method. Fixed by passing self.content instead.
Ad-hoc testing - I now see a diff rather than a stack trace.