Use EXT_direct_state_access for path matrix manipulation

src/gpu/gl/unix/GrGLCreateNativeInterface_unix.cpp

Index: src/gpu/gl/unix/GrGLCreateNativeInterface_unix.cpp
diff --git a/src/gpu/gl/unix/GrGLCreateNativeInterface_unix.cpp b/src/gpu/gl/unix/GrGLCreateNativeInterface_unix.cpp
index d47cc612033bdbb6f5c370fdbd5e431743075c00..4d5b8f4563ed6fb79939e8e106ebf9e90ab8d28f 100644
--- a/src/gpu/gl/unix/GrGLCreateNativeInterface_unix.cpp
+++ b/src/gpu/gl/unix/GrGLCreateNativeInterface_unix.cpp
@@ -119,6 +119,10 @@ const GrGLInterface* GrGLCreateNativeInterface() {
     functions->fLineWidth = glLineWidth;
     GR_GL_GET_PROC(LinkProgram);
     GR_GL_GET_PROC(MapBuffer);
+    if (extensions.has("GL_EXT_direct_state_access")) {
+        GR_GL_GET_PROC_SUFFIX(MatrixLoadf, EXT);
+        GR_GL_GET_PROC_SUFFIX(MatrixLoadIdentity, EXT);
+    }
     functions->fPixelStorei = glPixelStorei;
     functions->fReadBuffer = glReadBuffer;
     functions->fReadPixels = glReadPixels;
@@ -214,10 +218,6 @@ const GrGLInterface* GrGLCreateNativeInterface() {
         return NULL;
     }
 
-    GR_GL_GET_PROC(LoadIdentity);
-    GR_GL_GET_PROC(LoadMatrixf);
-    GR_GL_GET_PROC(MatrixMode);
-
     if (extensions.has("GL_NV_path_rendering")) {
         GR_GL_GET_PROC_SUFFIX(PathCommands, NV);
         GR_GL_GET_PROC_SUFFIX(PathCoords, NV);