Revert of make drawText calls non-virtual, to ease SkFont and TextBlob (https://codereview.chromium.org/243853006/)

Reason for revert:
need to test more the code-path where we don't opt into the new virtuals

Original issue's description:
> make drawText calls non-virtual, to ease SkFont and TextBlob
>
> BUG=skia:
>
> Committed: http://code.google.com/p/skia/source/detail?r=14307

R=robertphillips@google.com
TBR=robertphillips@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Author: reed@google.com

Review URL: https://codereview.chromium.org/247983003

git-svn-id: http://skia.googlecode.com/svn/trunk@14314 2bbb7eff-a529-9590-31e7-b0007b416f81
22 files changed