[Extensions] Convert some ChromeSyncExtensionFunctions

chrome/browser/speech/extension_api/tts_extension_api.h

 // Copyright (c) 2012 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_SPEECH_EXTENSION_API_TTS_EXTENSION_API_H_
 #define CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_EXTENSION_API_H_
 
 #include <string>
 
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/browser/speech/tts_controller.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 
 namespace content {
 class BrowserContext;
 }
 
 const char *TtsEventTypeToString(TtsEventType event_type);
 TtsEventType TtsEventTypeFromString(const std::string& str);
 
 namespace extensions {
 
 class TtsSpeakFunction : public ChromeAsyncExtensionFunction {
  private:
   ~TtsSpeakFunction() override {}
   bool RunAsync() override;
   DECLARE_EXTENSION_FUNCTION("tts.speak", TTS_SPEAK)
 };
 
-class TtsStopSpeakingFunction : public ChromeSyncExtensionFunction {
+class TtsStopSpeakingFunction : public UIThreadExtensionFunction {
  private:
   ~TtsStopSpeakingFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
   DECLARE_EXTENSION_FUNCTION("tts.stop", TTS_STOP)
 };
 
-class TtsPauseFunction : public ChromeSyncExtensionFunction {
+class TtsPauseFunction : public UIThreadExtensionFunction {
  private:
   ~TtsPauseFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
   DECLARE_EXTENSION_FUNCTION("tts.pause", TTS_PAUSE)
 };
 
-class TtsResumeFunction : public ChromeSyncExtensionFunction {
+class TtsResumeFunction : public UIThreadExtensionFunction {
  private:
   ~TtsResumeFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
   DECLARE_EXTENSION_FUNCTION("tts.resume", TTS_RESUME)
 };
 
-class TtsIsSpeakingFunction : public ChromeSyncExtensionFunction {
+class TtsIsSpeakingFunction : public UIThreadExtensionFunction {
  private:
   ~TtsIsSpeakingFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
   DECLARE_EXTENSION_FUNCTION("tts.isSpeaking", TTS_ISSPEAKING)
 };
 
-class TtsGetVoicesFunction : public ChromeSyncExtensionFunction {
+class TtsGetVoicesFunction : public UIThreadExtensionFunction {
  private:
   ~TtsGetVoicesFunction() override {}
-  bool RunSync() override;
+  ResponseAction Run() override;
   DECLARE_EXTENSION_FUNCTION("tts.getVoices", TTS_GETVOICES)
 };
 
 class TtsAPI : public BrowserContextKeyedAPI {
  public:
   explicit TtsAPI(content::BrowserContext* context);
   ~TtsAPI() override;
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<TtsAPI>* GetFactoryInstance();
 
  private:
   friend class BrowserContextKeyedAPIFactory<TtsAPI>;
 
   // BrowserContextKeyedAPI implementation.
   static const char* service_name() {
     return "TtsAPI";
   }
   static const bool kServiceIsNULLWhileTesting = true;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_EXTENSION_API_H_