A bug (b/8132682) in "Download as PDF" from Google Docs makes table of
contents links point back to the original document. This causes
problems with external customers.
This change uses the following work around: print the document, and
select "Save as PDF" as the printer.
This only removes the links. It does not fix them. When bug 8132682
is fixed we can re-download the documents with proper links.
bug: 12585419
Merge of https://widevine-internal-review.googlesource.com/#/c/8775/
from the widevine cdm repo.
Change-Id: I5344b85bee213aba3a99913a4bb7be824fdd7acf
adfd599175