Revert "Automatically trigger installation of high-quality speech synthesis extension."

chrome/browser/speech/tts_controller.h

Index: chrome/browser/speech/tts_controller.h
diff --git a/chrome/browser/speech/tts_controller.h b/chrome/browser/speech/tts_controller.h
index c4329e4d9741712f23111cd3f18738f3c454059d..c8d1c10a4cf456421169892bce4b179ce896a20a 100644
--- a/chrome/browser/speech/tts_controller.h
+++ b/chrome/browser/speech/tts_controller.h
@@ -102,7 +102,7 @@ class Utterance {
   // when the utterance is done speaking. Before speaking this utterance,
   // its other parameters like text, rate, pitch, etc. should all be set.
   explicit Utterance(Profile* profile);
-  virtual ~Utterance();
+  ~Utterance();
 
   // Sends an event to the delegate. If the event type is TTS_EVENT_END
   // or TTS_EVENT_ERROR, deletes the utterance. If |char_index| is -1,
@@ -189,9 +189,6 @@ class Utterance {
   int id() const { return id_; }
   bool finished() const { return finished_; }
 
- protected:
-  void set_finished_for_testing(bool finished) { finished_ = finished; }
-
  private:
   // The profile that initiated this utterance.
   Profile* profile_;
@@ -286,6 +283,10 @@ class TtsController {
   // if supported, and all voices registered by extensions.
   void GetVoices(Profile* profile, std::vector<VoiceData>* out_voices);
 
+  // Called by TtsExtensionLoaderChromeOs::LoadTtsExtension when it
+  // finishes loading the built-in TTS component extension.
+  void RetrySpeakingQueuedUtterances();
+
   // Called by the extension system or platform implementation when the
   // list of voices may have changed and should be re-queried.
   void VoicesChanged();