update perf rnn demo

[dsmilkov]

ping @cghawthorne

---

This change is 

[nsthorat]

---

Reviewed 7 of 8 files at r1, 1 of 2 files at r2.
Review status: all files reviewed at latest revision, 1 unresolved discussion.

---

demos/performance_rnn/performance_rnn.ts, line 107 at r1 (raw file):

  document.querySelector('#status').innerHTML =
      'We do not yet support your device. Please try on ' +
      'a desktop computer with Chrome/Firefox, or an Android phone.';

with WebGL

---

Comments from Reviewable

[cghawthorne]

---

Review status: all files reviewed at latest revision, 1 unresolved discussion, some commit checks pending.

---

Comments from Reviewable

[dsmilkov]

Review status: 7 of 8 files reviewed at latest revision, 1 unresolved discussion, some commit checks pending.

---

demos/performance_rnn/performance_rnn.ts, line 107 at r1 (raw file):

Previously, nsthorat (Nikhil Thorat) wrote…

with WebGL

Done.

---

Comments from Reviewable