Refactoring to begin encapsulating SW path rendering in GrPathRenderer (issue 6125046)

[robertp...@google.com]

Reviewers: bsalomon,

Description:
First pass at moving the software path rendering into a
GrPathRenderer-derived class.

I currently left the software rendering path in GrContext.cpp but will
pull it into the GrSoftwarePathRenderer shell in a follow on delivery.

Please review this at http://codereview.appspot.com/6125046/

Affected files:
M gyp/gpu.gyp
M src/gpu/GrAddPathRenderers_default.cpp
M src/gpu/GrContext.cpp
A src/gpu/GrSoftwarePathRenderer.cpp
A src/gpu/GrSoftwarePathRenderer.h

[bsal...@google.com]

On 2012/04/26 00:05:42, robertphillips wrote:

LGTM

http://codereview.appspot.com/6125046/

[robertp...@google.com]

Committed first portion as r3769

Holding off on gpu.gyp & GrAddPathRenderers_default.cpp until can do the
DEPS roll

http://codereview.appspot.com/6125046/

[robertp...@google.com]

Committed second half as r3804

http://codereview.appspot.com/6125046/