Change set_continuous_parameters() for removing duplicated behavior.

chrome/browser/speech/extension_api/tts_extension_api.cc

 // 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.
 
 #include "chrome/browser/speech/extension_api/tts_extension_api.h"
 
 #include <string>
 
 #include "base/lazy_instance.h"
 #include "base/values.h"
@@ skipping 251 matching lines @@
     EXTENSION_FUNCTION_VALIDATE(
         options->GetInteger(constants::kSrcIdKey, &src_id));
   }
 
   // If we got this far, the arguments were all in the valid format, so
   // send the success response to the callback now - this ensures that
   // the callback response always arrives before events, which makes
   // the behavior more predictable and easier to write unit tests for too.
   SendResponse(true);
 
-  UtteranceContinuousParameters continuous_params;
-  continuous_params.rate = rate;
-  continuous_params.pitch = pitch;
-  continuous_params.volume = volume;
-
   Utterance* utterance = new Utterance(GetProfile());
   utterance->set_text(text);
   utterance->set_voice_name(voice_name);
   utterance->set_src_id(src_id);
   utterance->set_src_url(source_url());
   utterance->set_lang(lang);
   utterance->set_gender(gender);
-  utterance->set_continuous_parameters(continuous_params);
+  utterance->set_continuous_parameters(rate, pitch, volume);
   utterance->set_can_enqueue(can_enqueue);
   utterance->set_required_event_types(required_event_types);
   utterance->set_desired_event_types(desired_event_types);
   utterance->set_extension_id(voice_extension_id);
   utterance->set_options(options.get());
   utterance->set_event_delegate(new TtsExtensionEventHandler(extension_id()));
 
   TtsController* controller = TtsController::GetInstance();
   controller->SpeakOrEnqueue(utterance);
   return true;
@@ skipping 73 matching lines @@
 }
 
 static base::LazyInstance<BrowserContextKeyedAPIFactory<TtsAPI> > g_factory =
     LAZY_INSTANCE_INITIALIZER;
 
 BrowserContextKeyedAPIFactory<TtsAPI>* TtsAPI::GetFactoryInstance() {
   return g_factory.Pointer();
 }
 
 }  // namespace extensions