KHR_create_context with GLES forbids _KHR reset notification enum.

EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT from
EXT_create_context_robustness must be used with GLES instead.

BUG=angleproject:2213

Change-Id: Icaf3c7550c4eb7cb61c6d4ed37adba7824ca4bc8
Reviewed-on: https://chromium-review.googlesource.com/759122
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
diff --git a/src/libANGLE/Context.cpp b/src/libANGLE/Context.cpp
index eef8564..07bbb5a 100644
--- a/src/libANGLE/Context.cpp
+++ b/src/libANGLE/Context.cpp
@@ -165,7 +165,7 @@
 GLenum GetResetStrategy(const egl::AttributeMap &attribs)
 {
     EGLAttrib attrib = attribs.get(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT,
-                                   EGL_NO_RESET_NOTIFICATION_EXT);
+                                   EGL_NO_RESET_NOTIFICATION);
     switch (attrib)
     {
         case EGL_NO_RESET_NOTIFICATION: