Add Pause and Resume to Web TTS & Extension TTS APIs

chrome/browser/speech/tts_message_filter.cc

 // Copyright (c) 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.
 
 #include "chrome/browser/speech/tts_message_filter.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/speech/tts_controller.h"
@@ skipping 71 matching lines @@
   params.pitch = request.pitch;
   params.volume = request.volume;
   utterance->set_continuous_parameters(params);
 
   utterance->set_event_delegate(this);
 
   TtsController::GetInstance()->SpeakOrEnqueue(utterance.release());
 }
 
 void TtsMessageFilter::OnPause() {
-  // TODO(dmazzoni): Not supported by TtsController yet.
+  TtsController::GetInstance()->Pause();
 }
 
 void TtsMessageFilter::OnResume() {
-  // TODO(dmazzoni): Not supported by TtsController yet.
+  TtsController::GetInstance()->Resume();
 }
 
 void TtsMessageFilter::OnCancel() {
   TtsController::GetInstance()->Stop();
 }
 
 void TtsMessageFilter::OnTtsEvent(Utterance* utterance,
                                   TtsEventType event_type,
                                   int char_index,
                                   const std::string& error_message) {
@@ skipping 16 matching lines @@
     case TTS_EVENT_INTERRUPTED:
       Send(new TtsMsg_WasInterrupted(utterance->src_id()));
       break;
     case TTS_EVENT_CANCELLED:
       Send(new TtsMsg_WasCancelled(utterance->src_id()));
       break;
     case TTS_EVENT_ERROR:
       Send(new TtsMsg_SpeakingErrorOccurred(
           utterance->src_id(), error_message));
       break;
+    case TTS_EVENT_PAUSE:
+      Send(new TtsMsg_DidPauseSpeaking(utterance->src_id()));
+      break;
+    case TTS_EVENT_RESUME:
+      Send(new TtsMsg_DidResumeSpeaking(utterance->src_id()));
+      break;
   }
 }
 
 void TtsMessageFilter::OnVoicesChanged() {
   OnInitializeVoiceList();
 }
 
 TtsMessageFilter::~TtsMessageFilter() {
 }