GLES1: glNormal3(f|x)

BUG=angleproject:2306

Change-Id: I42834078b14aaa20c4d4e6b67c097c810f5a17a3
Reviewed-on: https://chromium-review.googlesource.com/987297
Commit-Queue: Lingfeng Yang <lfy@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
diff --git a/src/libANGLE/Context.cpp b/src/libANGLE/Context.cpp
index e7fdbab..570a961 100644
--- a/src/libANGLE/Context.cpp
+++ b/src/libANGLE/Context.cpp
@@ -6401,6 +6401,10 @@
                 *type      = GL_FLOAT;
                 *numParams = 4;
                 return true;
+            case GL_CURRENT_NORMAL:
+                *type      = GL_FLOAT;
+                *numParams = 3;
+                return true;
         }
     }