Add gpu support for Apple specific 'Vertex Arrays' functions

src/gpu/gl/GrGLAssembleInterface.cpp

Index: src/gpu/gl/GrGLAssembleInterface.cpp
diff --git a/src/gpu/gl/GrGLAssembleInterface.cpp b/src/gpu/gl/GrGLAssembleInterface.cpp
index 425ed647c5dce0fa9d2e751cdb80144e3560e274..25f9e161f499fb691ddf1372336c32892f0f8adf 100644
--- a/src/gpu/gl/GrGLAssembleInterface.cpp
+++ b/src/gpu/gl/GrGLAssembleInterface.cpp
@@ -196,6 +196,10 @@ const GrGLInterface* GrGLAssembleGLInterface(void* ctx, GrGLGetProc get) {
         GET_PROC(BindVertexArray);
         GET_PROC(GenVertexArrays);
         GET_PROC(DeleteVertexArrays);
+    } else if (extensions.has("GL_APPLE_vertex_array_object")) {
+        GET_PROC_SUFFIX(BindVertexArray, APPLE);
+        GET_PROC_SUFFIX(GenVertexArrays, APPLE);
+        GET_PROC_SUFFIX(DeleteVertexArrays, APPLE);
     }
 
     if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_map_buffer_range")) {