If user had consented for metrics reporting, send speech input request origin to the server.

chrome/browser/speech/speech_recognizer.h

 // Copyright (c) 2010 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_SPEECH_RECOGNIZER_H_
 #define CHROME_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_
 
 #include <list>
 #include <string>
 #include <utility>
@@ skipping 58 matching lines @@
     virtual void SetInputVolume(int caller_id, float volume) = 0;
 
    protected:
     virtual ~Delegate() {}
   };
 
   SpeechRecognizer(Delegate* delegate,
                    int caller_id,
                    const std::string& language,
                    const std::string& grammar,
-                   const std::string& hardware_info);
+                   const std::string& hardware_info,
+                   const std::string& origin_url);
   ~SpeechRecognizer();
 
   // Starts audio recording and does recognition after recording ends. The same
   // SpeechRecognizer instance can be used multiple times for speech recognition
   // though each recognition request can be made only after the previous one
   // completes (i.e. after receiving Delegate::DidCompleteRecognition).
   bool StartRecording();
 
   // Stops recording audio and starts recognition.
   void StopRecording();
@@ skipping 29 matching lines @@
   void HandleOnError(int error_code);  // Handles OnError in the IO thread.
 
   // Handles OnData in the IO thread. Takes ownership of |data|.
   void HandleOnData(std::string* data);
 
   Delegate* delegate_;
   int caller_id_;
   std::string language_;
   std::string grammar_;
   std::string hardware_info_;
+  std::string origin_url_;
 
   scoped_ptr<SpeechRecognitionRequest> request_;
   scoped_refptr<media::AudioInputController> audio_controller_;
   AudioEncoder::Codec codec_;
   scoped_ptr<AudioEncoder> encoder_;
   Endpointer endpointer_;
   int num_samples_recorded_;
   float audio_level_;
 
   DISALLOW_COPY_AND_ASSIGN(SpeechRecognizer);
 };
 
 // This typedef is to workaround the issue with certain versions of
 // Visual Studio where it gets confused between multiple Delegate
 // classes and gives a C2500 error. (I saw this error on the try bots -
 // the workaround was not needed for my machine).
 typedef SpeechRecognizer::Delegate SpeechRecognizerDelegate;
 
 }  // namespace speech_input
 
 #endif  // CHROME_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_