Make windows GrGLCreateNatriveInterface not us GL.h and not use linker to resolve gl functions. Instead load the GL library and use GetProcAddress.

R=robertphillips@google.com
Review URL: https://codereview.appspot.com/7308047

git-svn-id: http://skia.googlecode.com/svn/trunk@7582 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed