pdfviewer: code cleanup - add licence on files, make replace __DEFINE__foo with foo_DEFINED to match skia project

Review URL: https://codereview.chromium.org/23361009

git-svn-id: http://skia.googlecode.com/svn/trunk@10854 2bbb7eff-a529-9590-31e7-b0007b416f81
363 files changed