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

content/browser/speech/audio_encoder.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 CONTENT_BROWSER_SPEECH_AUDIO_ENCODER_H_
 #define CONTENT_BROWSER_SPEECH_AUDIO_ENCODER_H_
 
 #include <list>
 #include <string>
 
@@ skipping 19 matching lines @@
   // Encodes each frame of raw audio in |samples| to the internal buffer. Use
   // |GetEncodedData| to read the result after this call or when recording
   // completes.
   virtual void Encode(const short* samples, int num_samples) = 0;
 
   // Finish encoding and flush any pending encoded bits out.
   virtual void Flush() = 0;
 
   // Copies the encoded audio to the given string. Returns true if the output
   // is not empty.
-  bool GetEncodedData(std::string* encoded_data);
+  bool GetEncodedDataAndClear(std::string* encoded_data);
 
   const std::string& mime_type() { return mime_type_; }
 
  protected:
   AudioEncoder(const std::string& mime_type);
 
   void AppendToBuffer(std::string* item);
 
  private:
   // Buffer holding the recorded audio. Owns the strings inside the list.
   typedef std::list<std::string*> AudioBufferQueue;
   AudioBufferQueue audio_buffers_;
   std::string mime_type_;
   DISALLOW_COPY_AND_ASSIGN(AudioEncoder);
 };
 
 }  // namespace speech_input
 
 #endif  // CONTENT_BROWSER_SPEECH_AUDIO_ENCODER_H_