Stream speech audio to server as it gets recorded, instead of waiting until end of recording.

content/browser/speech/speech_recognition_request.h

 // Copyright (c) 2011 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_REQUEST_H_
 #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_REQUEST_H_
 #pragma once
 
 #include <string>
 
@@ skipping 28 matching lines @@
 
   // |url| is the server address to which the request wil be sent.
   SpeechRecognitionRequest(URLRequestContextGetter* context,
                            Delegate* delegate);
 
   virtual ~SpeechRecognitionRequest();
 
   // Sends a new request with the given audio data, returns true if successful.
   // The same object can be used to send multiple requests but only after the
   // previous request has completed.
-  bool Send(const std::string& language,
-            const std::string& grammar,
-            const std::string& hardware_info,
-            const std::string& origin_url,
-            const std::string& content_type,
-            const std::string& audio_data);
+  void Start(const std::string& language,
+             const std::string& grammar,
+             const std::string& hardware_info,
+             const std::string& origin_url,
+             const std::string& content_type);
+
+  // Send a single chunk of audio immediately to the server.
+  void UploadAudioChunk(const std::string& audio_data, bool is_last_chunk);
 
   bool HasPendingRequest() { return url_fetcher_ != NULL; }
 
   // URLFetcher::Delegate methods.
   virtual void OnURLFetchComplete(const URLFetcher* source,
                                   const GURL& url,
                                   const net::URLRequestStatus& status,
                                   int response_code,
                                   const ResponseCookies& cookies,
                                   const std::string& data);
 
  private:
   scoped_refptr<URLRequestContextGetter> url_context_;
   Delegate* delegate_;
   scoped_ptr<URLFetcher> url_fetcher_;
 
   DISALLOW_COPY_AND_ASSIGN(SpeechRecognitionRequest);
 };
 
 // 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 SpeechRecognitionRequest::Delegate SpeechRecognitionRequestDelegate;
 
 }  // namespace speech_input
 
 #endif  // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_REQUEST_H_