Drop support for uploading hardware info with speech recognition requests

chrome/browser/speech/chrome_speech_recognition_manager_delegate.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_CHROME_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
 #define CHROME_BROWSER_SPEECH_CHROME_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 25 matching lines @@
       int session_id,
       const content::SpeechRecognitionResults& result) override;
   void OnRecognitionError(
       int session_id,
       const content::SpeechRecognitionError& error) override;
   void OnAudioLevelsChange(int session_id,
                            float volume,
                            float noise_volume) override;
 
   // SpeechRecognitionManagerDelegate methods.
-  void GetDiagnosticInformation(bool* can_report_metrics,
-                                std::string* hardware_info) override;
   void CheckRecognitionIsAllowed(
       int session_id,
       base::Callback<void(bool ask_user, bool is_allowed)> callback) override;
   content::SpeechRecognitionEventListener* GetEventListener() override;
   bool FilterProfanities(int render_process_id) override;
 
   // Callback called by |tab_watcher_| on the IO thread to signal tab closure.
   virtual void TabClosedCallback(int render_process_id, int render_view_id);
 
  private:
-  class OptionalRequestInfo;
   class TabWatcher;
 
   // Checks for VIEW_TYPE_TAB_CONTENTS host in the UI thread and notifies back
   // the result in the IO thread through |callback|.
   static void CheckRenderViewType(
       base::Callback<void(bool ask_user, bool is_allowed)> callback,
       int render_process_id,
       int render_view_id);
 
-  scoped_refptr<OptionalRequestInfo> optional_request_info_;
   scoped_refptr<TabWatcher> tab_watcher_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeSpeechRecognitionManagerDelegate);
 };
 
 }  // namespace speech
 
 #endif  // CHROME_BROWSER_SPEECH_CHROME_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_