Enable compiling the PDF backend by default in the makefile.

Use SKIA_PDF_SUPPORT=false to disable the PDF backend.

Review URL: http://codereview.appspot.com/4267046

git-svn-id: http://skia.googlecode.com/svn/trunk@906 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed