Ensure focus ring is cleared in stopAll_ even if speech was not on.

This fixes a bug in which the focus ring could remain on the screen
if the user released the 'search' key before letting go of the
mouse button.

Bug: 770881
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I11dd444aaa03e7e7fff08d77ed6e18ac79c8b895
Reviewed-on: https://chromium-review.googlesource.com/696188
Commit-Queue: Dominic Mazzoni <dmazzoni@chromium.org>
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#506977}

chrome/browser/resources/chromeos/select_to_speak/select_to_speak.js

@@ -350,9 +350,13 @@ SelectToSpeak.prototype = {
    * Stop speech. If speech was in-progress, the interruption
    * event will be caught and clearFocusRingAndNode_ will be
    * called, stopping visual feedback as well.
+   * If speech was not in progress, i.e. if the user was drawing
+   * a focus ring on the screen, this still clears the visual
+   * focus ring.
    */
   stopAll_: function() {
     chrome.tts.stop();
+    this.clearFocusRing_();
   },
 
   /**