Modifies AudioInputCallback::OnData and use media::AudioBus instead of plain byte vector (Relanding)

media/audio/audio_low_latency_input_output_unittest.cc

Index: media/audio/audio_low_latency_input_output_unittest.cc
diff --git a/media/audio/audio_low_latency_input_output_unittest.cc b/media/audio/audio_low_latency_input_output_unittest.cc
index 2ae700a874bd8d87b560418168c0570551c4b060..eefd3800aabd18800cc0011293e0dd8a3cce3530 100644
--- a/media/audio/audio_low_latency_input_output_unittest.cc
+++ b/media/audio/audio_low_latency_input_output_unittest.cc
@@ -184,7 +184,7 @@ class FullDuplexAudioSinkSource
 
   // AudioInputStream::AudioInputCallback.
   virtual void OnData(AudioInputStream* stream,
-                      const uint8* src, uint32 size,
+                      const AudioBus* src,
                       uint32 hardware_delay_bytes,
                       double volume) OVERRIDE {
     base::AutoLock lock(lock_);
@@ -203,14 +203,15 @@ class FullDuplexAudioSinkSource
       ++input_elements_to_write_;
     }
 
+    // TODO(henrika): fix this and use AudioFifo instead.
     // Store the captured audio packet in a seekable media buffer.
-    if (!buffer_->Append(src, size)) {
-      // An attempt to write outside the buffer limits has been made.
-      // Double the buffer capacity to ensure that we have a buffer large
-      // enough to handle the current sample test scenario.
-      buffer_->set_forward_capacity(2 * buffer_->forward_capacity());
-      buffer_->Clear();
-    }
+    // if (!buffer_->Append(src, size)) {
+    // An attempt to write outside the buffer limits has been made.
+    // Double the buffer capacity to ensure that we have a buffer large
+    // enough to handle the current sample test scenario.
+    //   buffer_->set_forward_capacity(2 * buffer_->forward_capacity());
+    //   buffer_->Clear();
+    // }
   }
 
   virtual void OnError(AudioInputStream* stream) OVERRIDE {}