Select-to-speak: Stop speech when tapping Search or Control

chrome/browser/chromeos/accessibility/speech_monitor.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_SPEECH_MONITOR_H_
 #define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_SPEECH_MONITOR_H_
 
 #include <deque>
 
 #include "base/macros.h"
@@ skipping 12 matching lines @@
   ~SpeechMonitor() override;
 
   // Blocks until the next utterance is spoken, and returns its text.
   std::string GetNextUtterance();
 
   // Wait for next utterance and return true if next utterance is ChromeVox
   // enabled message.
   bool SkipChromeVoxEnabledMessage();
   bool SkipChromeVoxMessage(const std::string& message);
 
+  // Returns true if StopSpeaking() was called on TtsController.
+  bool DidStop();
+
+ private:
   // TtsPlatformImpl implementation.
   bool PlatformImplAvailable() override;
   bool Speak(int utterance_id,
              const std::string& utterance,
              const std::string& lang,
              const VoiceData& voice,
              const UtteranceContinuousParameters& params) override;
   bool StopSpeaking() override;
   bool IsSpeaking() override;
   void GetVoices(std::vector<VoiceData>* out_voices) override;
   void Pause() override {}
   void Resume() override {}
   std::string error() override;
   void clear_error() override {}
   void set_error(const std::string& error) override {}
   void WillSpeakUtteranceWithVoice(const Utterance* utterance,
                                    const VoiceData& voice_data) override;
 
- private:
   scoped_refptr<content::MessageLoopRunner> loop_runner_;
   std::deque<std::string> utterance_queue_;
+  bool did_stop_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(SpeechMonitor);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_SPEECH_MONITOR_H_