Put ResourceLoaderMac back in (for now). It provides an impl we need until we can pull this prototype upstream.
Put ResourceLoaderMac back in (for now). It provides an impl we need until we can pull this prototype upstream.

Review URL: http://codereview.chromium.org/2930

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@2307 0039d316-1c4b-4281-b951-d872f2087c98

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