Read the selected text explicitly when focusing a texdt field

chrome/browser/resources/chromeos/chromevox/cvox2/background/background.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 The entry point for all ChromeVox2 related code for the
  * background page.
  */
 
 goog.provide('Background');
@@ skipping 471 matching lines @@
           selectedRange = prevRange;
         }
         this.pageSel_ = new cursors.Range(
             this.pageSel_.start,
             range.end
             );
         if (this.pageSel_)
           this.pageSel_.select();
       }
     } else {
-      range.select();
+      // Ensure we don't select the editable when we first encounter it.
+      var lca = null;
+      if (range.start.node && prevRange.start.node) {
+        lca = AutomationUtil.getLeastCommonAncestor(prevRange.start.node,
+                                                    range.start.node);
+      }
+      if (!lca || lca.state.editable || !range.start.node.state.editable)
+        range.select();
     }
 
     o.withRichSpeechAndBraille(
         selectedRange || range, prevRange, Output.EventType.NAVIGATE)
             .withQueueMode(cvox.QueueMode.FLUSH);
 
     if (msg)
       o.format(msg);
 
     for (var prop in opt_speechProps)
@@ skipping 266 matching lines @@
   return new RegExp('^(' + globs.map(function(glob) {
     return glob.replace(/[.+^$(){}|[\]\\]/g, '\\$&')
         .replace(/\*/g, '.*')
         .replace(/\?/g, '.');
   }).join('|') + ')$');
 };
 
 new Background();
 
 });  // goog.scope