Build skia as a dll in windows multi-dll build (without adding gpu dependenci...

Build skia as a dll in windows multi-dll build (without adding gpu dependencies).
* Not for submit
* Verification that skia currently doesn't require gpu dependencies to build chrome.
* See: http://codereview.chromium.org/6682011/

[reed1, 2011-03-17 12:18:41]

I believe there is an independent CL in the works to remove skia and ganesh's
dependency on command-buffer/gl. We are switching to a runtime function-ptr
technique to allow skia to find opengl. With that change it seems we can
completely remove the need to link against cmd-buffer.

Jeff/Brian, can you comment?

[bsalomon, 2011-03-17 13:14:34]

Yes, Jeff is working on this. I think we're close to resolving it. Jeff has
made a lot of progress towards removing dependence on a particular GL
implementation in the Gr subsystem.  (See
http://codereview.chromium.org/6677105/)

On Thu, Mar 17, 2011 at 8:18 AM, <reed@google.com> wrote:

> I believe there is an independent CL in the works to remove skia and
> ganesh's
> dependency on command-buffer/gl. We are switching to a runtime function-ptr
> technique to allow skia to find opengl. With that change it seems we can
> completely remove the need to link against cmd-buffer.
>
> Jeff/Brian, can you comment?
>
> http://codereview.chromium.org/6667071/
>

[twiz, 2011-03-18 21:10:22]

On 2011/03/17 13:14:34, bsalomon wrote:
> Yes, Jeff is working on this. I think we're close to resolving it. Jeff has
> made a lot of progress towards removing dependence on a particular GL
> implementation in the Gr subsystem.  (See
> http://codereview.chromium.org/6677105/)
> 
> On Thu, Mar 17, 2011 at 8:18 AM, <mailto:reed@google.com> wrote:
> 
> > I believe there is an independent CL in the works to remove skia and
> > ganesh's
> > dependency on command-buffer/gl. We are switching to a runtime function-ptr
> > technique to allow skia to find opengl. With that change it seems we can
> > completely remove the need to link against cmd-buffer.
> >
> > Jeff/Brian, can you comment?

Yes, all dependencies on GL headers have been removed from Ganesh.

See CLs: 
  http://codereview.appspot.com/4298048/
  http://codereview.appspot.com/4272061

However, the assignment of default function-pointer binding assume that a gl
implementation exists.  A small bit of work would be required to build skia
without linking to a GL library.  See the only remaining direct-callers of GL in
http://code.google.com/p/skia/source/browse/trunk/gpu/src/GrGLInterface.cpp

Jeff

> >
> > http://codereview.chromium.org/6667071/
> >