Move GL-specific include files to their own subdirectory, to better
coexist alongside D3D backend.
Requires gyp change.

http://codereview.appspot.com/5665045/



git-svn-id: http://skia.googlecode.com/svn/trunk@3185 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrGpuVertex.h b/src/gpu/GrGpuVertex.h
index 2abc2f4..d093e2d 100644
--- a/src/gpu/GrGpuVertex.h
+++ b/src/gpu/GrGpuVertex.h
@@ -11,7 +11,7 @@
 #ifndef GrGpuVertex_DEFINED
 #define GrGpuVertex_DEFINED
 
-#include "GrGLConfig.h"
+#include "gl/GrGLConfig.h"
 #include "GrPoint.h"
 
 #if GR_TEXT_SCALAR_IS_USHORT