Linux: reference Freetype headers by name.
Linux: reference Freetype headers by name.

When build tools chase down the headers, they cannot process headers
that are included by macro. Thus, we include the headers by name in an
#if 0 block. The compiler will ignore them, but
tools will still process them.

Review URL: http://codereview.chromium.org/42269


git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@11814 0039d316-1c4b-4281-b951-d872f2087c98

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