Speech: remove GoogleOneShotRemoteEngine

content/browser/speech/google_one_shot_remote_engine.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 CONTENT_BROWSER_SPEECH_GOOGLE_ONE_SHOT_REMOTE_ENGINE_H_
-#define CONTENT_BROWSER_SPEECH_GOOGLE_ONE_SHOT_REMOTE_ENGINE_H_
-
-#include <memory>
-#include <string>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "content/browser/speech/audio_encoder.h"
-#include "content/browser/speech/speech_recognition_engine.h"
-#include "content/common/content_export.h"
-#include "net/url_request/url_fetcher_delegate.h"
-
-namespace net {
-class URLRequestContextGetter;
-}
-
-namespace content {
-
-// Implements a SpeechRecognitionEngine by means of remote interaction with
-// Google speech recognition webservice.
-class CONTENT_EXPORT GoogleOneShotRemoteEngine
-    : public NON_EXPORTED_BASE(SpeechRecognitionEngine),
-      public net::URLFetcherDelegate {
- public:
-  // Duration of each audio packet.
-  static const int kAudioPacketIntervalMs;
-  // ID passed to URLFetcher::Create(). Used for testing.
-  static int url_fetcher_id_for_tests;
-
-  explicit GoogleOneShotRemoteEngine(net::URLRequestContextGetter* context);
-  ~GoogleOneShotRemoteEngine() override;
-
-  // SpeechRecognitionEngine methods.
-  void SetConfig(const SpeechRecognitionEngineConfig& config) override;
-  void StartRecognition() override;
-  void EndRecognition() override;
-  void TakeAudioChunk(const AudioChunk& data) override;
-  void AudioChunksEnded() override;
-  bool IsRecognitionPending() const override;
-  int GetDesiredAudioChunkDurationMs() const override;
-
-  // net::URLFetcherDelegate methods.
-  void OnURLFetchComplete(const net::URLFetcher* source) override;
-
- private:
-  SpeechRecognitionEngineConfig config_;
-  std::unique_ptr<net::URLFetcher> url_fetcher_;
-  scoped_refptr<net::URLRequestContextGetter> url_context_;
-  std::unique_ptr<AudioEncoder> encoder_;
-
-  DISALLOW_COPY_AND_ASSIGN(GoogleOneShotRemoteEngine);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_SPEECH_GOOGLE_ONE_SHOT_REMOTE_ENGINE_H_