Revert "[PDF] Refactor SkPDFFont to enable font/cmap subsetting."

The PDF xref table is corrupt with this change. Revert until we figure it out.

Review URL: http://codereview.appspot.com/4803049

git-svn-id: http://skia.googlecode.com/svn/trunk@1944 2bbb7eff-a529-9590-31e7-b0007b416f81
12 files changed