[PDF] Use SkTypeface::countGlyphs instead of getAdvancedTypefaceMetrics

resubmit r10063

BUG=1088
R=bungeman@google.com

Author: vandebo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19668002

git-svn-id: http://skia.googlecode.com/svn/trunk@10133 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed