Removal of all GL header dependencies in Ganesh.

This CL removes all dependencies on GL headers across all of Ganesh.  New GrGLint, etc. types are introduced, and new GR_GL_XXXX constants for use at all GL call-sites.

Committed:  http://code.google.com/p/skia/source/detail?r=959

[twiz1, 2011-03-18 03:30:58]

Please take a look.

Most of the changes are fairly trivial.  I pulled in all of the #defines that
were needed by Ganesh, but we may need to add more as more of GL is used by the
system.

This should be a good base-line from which to remove the conditional compilation
for GL_DESKTOP, etc.

Jeff

[bsalomon, 2011-03-18 13:25:01]

Jeff, it LGTM. I think we should omit the changes in SkUIView.h but otherwise
this looks right to me.

http://codereview.appspot.com/4272061/diff/3001/gpu/include/SkUIView.h
File gpu/include/SkUIView.h (right):

http://codereview.appspot.com/4272061/diff/3001/gpu/include/SkUIView.h#newcode7
gpu/include/SkUIView.h:7: 
I don't think we need to modify this file. It supports the Ganesh/skia iOS demo
app and its fine for it to be aware of the platform GL types.

[twiz1, 2011-03-18 15:15:36]

http://codereview.appspot.com/4272061/diff/3001/gpu/include/SkUIView.h
File gpu/include/SkUIView.h (right):

http://codereview.appspot.com/4272061/diff/3001/gpu/include/SkUIView.h#newcode7
gpu/include/SkUIView.h:7: 
On 2011/03/18 13:25:01, bsalomon wrote:
> I don't think we need to modify this file. It supports the Ganesh/skia iOS
demo
> app and its fine for it to be aware of the platform GL types.

Done.

[bsalomon, 2011-03-18 15:27:41]

LGTM.

On 2011/03/18 15:15:36, twiz1 wrote:
> http://codereview.appspot.com/4272061/diff/3001/gpu/include/SkUIView.h
> File gpu/include/SkUIView.h (right):
> 
>
http://codereview.appspot.com/4272061/diff/3001/gpu/include/SkUIView.h#newcode7
> gpu/include/SkUIView.h:7: 
> On 2011/03/18 13:25:01, bsalomon wrote:
> > I don't think we need to modify this file. It supports the Ganesh/skia iOS
> demo
> > app and its fine for it to be aware of the platform GL types.
> 
> Done.