2010-12-14 Ojan Vafai <ojan@chromium.org>

2010-12-14  Ojan Vafai  <ojan@chromium.org>

        Reviewed by Adam Barth.

        add ability to view for file context to the review tool
        https://bugs.webkit.org/show_bug.cgi?id=51057

        At the beginning/end of each file diff and between each
        hunk add links to expand the context. For now it grabs the
        tip of tree version of the file and tries to apply the diff
        to that file. If it can't apply, then it gives up as we
        wouldn't want to show the wrong lines of context.

        In the future, we can consider adding the upload svn revision
        to the diff itself, then we could fallback to the file at that
        revision if tip of tree doesn't apply.

        * PrettyPatch/PrettyPatch.rb:
        * code-review.js:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@74142 268f45cc-cd09-0410-ab3c-d52691b4dbfc