Use EXT_direct_state_access for path matrix manipulation

src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp

Index: src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp
diff --git a/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp b/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp
index 17d08b10d0be728da6414f311903ee3ed6e9539e..4c3d03fd3756b4e4005b61a4cdec8ccc984787ec 100644
--- a/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp
+++ b/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp
@@ -124,10 +124,11 @@ const GrGLInterface* GrGLCreateNativeInterface() {
     GET_PROC(GetUniformLocation);
     GET_PROC(LineWidth);
     GET_PROC(LinkProgram);
-    GET_PROC(LoadIdentity);
-    GET_PROC(LoadMatrixf);
     GET_PROC(MapBuffer);
-    GET_PROC(MatrixMode);
+    if (extensions.has("GL_EXT_direct_state_access")) {
+        GET_PROC_SUFFIX(MatrixLoadf, EXT);
+        GET_PROC_SUFFIX(MatrixLoadIdentity, EXT);
+    }
     GET_PROC(PixelStorei);
     GET_PROC(ReadBuffer);
     GET_PROC(ReadPixels);