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

content/browser/speech/audio_encoder.cc

 // 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.
 
 #include "content/browser/speech/audio_encoder.h"
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 #include "base/stl_util-inl.h"
@@ skipping 163 matching lines @@
 }
 
 AudioEncoder::AudioEncoder(const std::string& mime_type)
     : mime_type_(mime_type) {
 }
 
 AudioEncoder::~AudioEncoder() {
   STLDeleteElements(&audio_buffers_);
 }
 
-bool AudioEncoder::GetEncodedData(std::string* encoded_data) {
+bool AudioEncoder::GetEncodedDataAndClear(std::string* encoded_data) {
   if (!audio_buffers_.size())
     return false;
 
   int audio_buffer_length = 0;
   for (AudioBufferQueue::iterator it = audio_buffers_.begin();
        it != audio_buffers_.end(); ++it) {
     audio_buffer_length += (*it)->length();
   }
   encoded_data->reserve(audio_buffer_length);
   for (AudioBufferQueue::iterator it = audio_buffers_.begin();
        it != audio_buffers_.end(); ++it) {
     encoded_data->append(*(*it));
   }
 
+  STLDeleteElements(&audio_buffers_);
+
   return true;
 }
 
 void AudioEncoder::AppendToBuffer(std::string* item) {
   audio_buffers_.push_back(item);
 }
 
 }  // namespace speech_input