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/GrGLInterface.cpp b/src/gpu/gl/GrGLInterface.cpp
index c1ac088..7fb871c 100644
--- a/src/gpu/gl/GrGLInterface.cpp
+++ b/src/gpu/gl/GrGLInterface.cpp
@@ -8,8 +8,8 @@
 
 
 #include "GrTypes.h"
-#include "GrGLInterface.h"
-#include "GrGLDefines.h"
+#include "gl/GrGLInterface.h"
+#include "gl/GrGLDefines.h"
 
 #include <stdio.h>