Drop support for uploading hardware info with speech recognition requests

content/browser/speech/speech_recognition_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_SPEECH_RECOGNITION_ENGINE_H_
 #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_ENGINE_H_
 
 #include <stdint.h>
 #include <memory>
 #include <string>
@@ skipping 68 matching lines @@
   struct CONTENT_EXPORT Config {
     Config();
     ~Config();
 
     std::string language;
     SpeechRecognitionGrammarArray grammars;
     bool filter_profanities;
     bool continuous;
     bool interim_results;
     uint32_t max_hypotheses;
-    std::string hardware_info;
     std::string origin_url;
     int audio_sample_rate;
     int audio_num_bits_per_sample;
     std::string auth_token;
     std::string auth_scope;
     scoped_refptr<SpeechRecognitionSessionPreamble> preamble;
   };
 
   // set_delegate detached from constructor for lazy dependency injection.
   void set_delegate(Delegate* delegate) { delegate_ = delegate; }
@@ skipping 116 matching lines @@
   bool is_dispatching_event_;
   bool use_framed_post_data_;
   FSMState state_;
 
   DISALLOW_COPY_AND_ASSIGN(SpeechRecognitionEngine);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_ENGINE_H_