[WIP] Add Context to SkDrawLooper.
SkDrawLooper carries some state during draws. This CL extracts this state into
a separate class Context, which is then passed by the users of SkDrawLooper
into the appropriate methods.
This is a step towards making SkDrawLooper immutable.
BUG=skia:2141
R=scroggo@google.com, reed@google.com, sugoi@google.com
Author: dominikg@chromium.org
Review URL: https://codereview.chromium.org/155513012
git-svn-id: http://skia.googlecode.com/svn/trunk@13760 2bbb7eff-a529-9590-31e7-b0007b416f81
10 files changed