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/gl/GrGLIRect.h b/src/gpu/gl/GrGLIRect.h
index e94fa21..aee5fb4 100644
--- a/src/gpu/gl/GrGLIRect.h
+++ b/src/gpu/gl/GrGLIRect.h
@@ -11,7 +11,7 @@
 #ifndef GrGLIRect_DEFINED
 #define GrGLIRect_DEFINED
 
-#include "GrGLInterface.h"
+#include "gl/GrGLInterface.h"
 
 /**
  * Helper struct for dealing with the fact that Ganesh and GL use different