Add a $joinedDescendants output specifier.

chrome/browser/resources/chromeos/chromevox/cvox2/background/output.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview Provides output services for ChromeVox.
  */
 
 goog.provide('Output');
 goog.provide('Output.EventType');
@@ skipping 1025 matching lines @@
           if (!leftmost || !rightmost)
             return;
 
           var subrange = new cursors.Range(
               new cursors.Cursor(leftmost, 0),
               new cursors.Cursor(rightmost, 0));
           var prev = null;
           if (node)
             prev = cursors.Range.fromNode(node);
           this.range_(subrange, prev, Output.EventType.NAVIGATE, buff);
+        } else if (token == 'joinedDescendants') {
+          var unjoined = [];
+          this.format_(node, '$descendants', unjoined);
+          this.append_(buff, unjoined.join(' '), options);
         } else if (token == 'role') {
           if (localStorage['useVerboseMode'] == 'false')
             return;
 
           if (this.formatOptions_.auralStyle) {
             speechProps = new Output.SpeechProperties();
             speechProps['relativePitch'] = -0.3;
           }
           options.annotation.push(token);
           var msg = node.role;
@@ skipping 482 matching lines @@
             elem.end);
       });
       spansToRemove.forEach(result.removeSpan.bind(result));
       separator = Output.SPACE;
     });
     return result;
   }
 };
 
 });  // goog.scope