Select to Speak should not highlight staticText nodes.

staticText nodes will not work with the boundsForRange
function so it doesn't make sense to try to highlight
them.

Bug: 789211
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I958bb75e663f5cf2b073466014e7122899b892bf
Reviewed-on: https://chromium-review.googlesource.com/794517Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Commit-Queue: Katie D <katie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#519924}

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

@@ -766,11 +766,11 @@ SelectToSpeak.prototype = {
       default:
         if (inForeground) {
           if (this.wordHighlight_ && this.currentNodeWord_ != null) {
-            // Only show the highlight if this is an inline text box or
-            // static text. Otherwise we'd be highlighting entire nodes,
-            // like images. Highlight should be only for text.
-            if (node.role == RoleType.INLINE_TEXT_BOX ||
-                node.role == RoleType.STATIC_TEXT) {
+            // Only show the highlight if this is an inline text box.
+            // Otherwise we'd be highlighting entire nodes, like images.
+            // Highlight should be only for text.
+            // Note that boundsForRange doesn't work on staticText.
+            if (node.role == RoleType.INLINE_TEXT_BOX) {
               chrome.accessibilityPrivate.setHighlights(
                   [node.boundsForRange(
                       this.currentNodeWord_.start, this.currentNodeWord_.end)],
@@ -787,8 +787,7 @@ SelectToSpeak.prototype = {
           // TODO: Better test: has no siblings in the group, highlight just
           // the one node. if it has siblings, highlight the parent.
           if (this.currentBlockParent_ != null &&
-              (node.role == RoleType.STATIC_TEXT ||
-               node.role == RoleType.INLINE_TEXT_BOX)) {
+              node.role == RoleType.INLINE_TEXT_BOX) {
             chrome.accessibilityPrivate.setFocusRing(
                 [this.currentBlockParent_.location], this.color_);
           } else {