[PDF] Fix printing crashes caused by font streams that don't support getMemoryBase().

An apparently recently change started putting web fonts into SkStream objects that don't support getMemoryBase().  This change uses writeStream to avoid needing to call getMemoryBase().

BUG=chromium:274440
R=bungeman@google.com

Review URL: https://codereview.chromium.org/23437004

git-svn-id: http://skia.googlecode.com/svn/trunk/src@10928 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed