Fix encoding of UTF-8 characters sent to Google speech server.

chrome/browser/resources/network_speech_synthesis/tts_extension.js

 // Copyright 2013 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
  * This is a component extension that implements a text-to-speech (TTS)
  * engine powered by Google's speech synthesis API.
  *
  * This is an "event page", so it's not loaded when the API isn't being used,
@@ skipping 131 matching lines @@
       // Look up the specific voice name for this language and gender.
       // If it's not in the map, it doesn't matter - the language will
       // be used directly. This is only used for languages where more
       // than one gender is actually available.
       var key = lang.toLowerCase() + '-' + gender;
       var voiceName = this.LANG_AND_GENDER_TO_VOICE_NAME_[key];
 
       var url = this.SPEECH_SERVER_URL_;
       chrome.systemPrivate.getApiKey((function(key) {
         url += '&key=' + key;
-        url += '&text=' + escape(utterance);
+        url += '&text=' + encodeURIComponent(utterance);
         url += '&lang=' + lang.toLowerCase();
 
         if (voiceName)
           url += '&name=' + voiceName;
 
         if (options.rate) {
           // Input rate is between 0.1 and 10.0 with a default of 1.0.
           // Output speed is between 0.0 and 1.0 with a default of 0.5.
           url += '&speed=' + (options.rate / 2.0);
         }
@@ skipping 82 matching lines @@
    */
   onResume_: function() {
     if (this.currentUtterance_) {
       this.audioElement_.play();
     }
   }
 
 };
 
 (new TtsExtension()).init();