refactor folders to make prepare for native pdf parser

Review URL: https://codereview.chromium.org/18179007

git-svn-id: http://skia.googlecode.com/svn/trunk@9825 2bbb7eff-a529-9590-31e7-b0007b416f81

experimental/PdfViewer/autogen.txt

@@ -0,0 +1,5 @@
+TODO(edisonn): do not check in the generated code, but generate the code at build time
+To generate the code, run 
+python spec2def.py <PdfReference-okular-1.txt >autogen/pdfspec_autogen.py
+autogen$ python ../generate_code.py
+