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

content/browser/speech/audio_encoder.cc

Index: content/browser/speech/audio_encoder.cc
diff --git a/content/browser/speech/audio_encoder.cc b/content/browser/speech/audio_encoder.cc
index c24f45f3377a23b8f121b4e96479e6aa9efffe29..7c906745fbeaa766cf0ffdc34c06cf5c56908de4 100644
--- a/content/browser/speech/audio_encoder.cc
+++ b/content/browser/speech/audio_encoder.cc
@@ -181,7 +181,7 @@ 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;
 
@@ -196,6 +196,8 @@ bool AudioEncoder::GetEncodedData(std::string* encoded_data) {
     encoded_data->append(*(*it));
   }
 
+  STLDeleteElements(&audio_buffers_);
+
   return true;
 }