Renamed JsCanvas to JsContext and moved into it's own file.

Fleshed out a lot of the Path interface.

BUG=
R=robertphillips@google.com, tfarina@chromium.org, reed@google.com

Author: jcgregorio@google.com

Review URL: https://codereview.chromium.org/121303004

git-svn-id: http://skia.googlecode.com/svn/trunk@12913 2bbb7eff-a529-9590-31e7-b0007b416f81
13 files changed