Revert of Remove ScopedVector from all other codes in media/

media/formats/webm/opus_packet_builder.h

Index: media/formats/webm/opus_packet_builder.h
diff --git a/media/formats/webm/opus_packet_builder.h b/media/formats/webm/opus_packet_builder.h
index 77e5f2a9597898a857db1fae03ddb6d9aa307aef..5f824015f03ea80c7821e13514dde608b54e347e 100644
--- a/media/formats/webm/opus_packet_builder.h
+++ b/media/formats/webm/opus_packet_builder.h
@@ -11,6 +11,7 @@
 #include <vector>
 
 #include "base/macros.h"
+#include "base/memory/scoped_vector.h"
 
 namespace media {
 
@@ -38,7 +39,7 @@
 };
 
 // Builds an exhaustive collection of Opus packet configurations.
-std::vector<std::unique_ptr<OpusPacket>> BuildAllOpusPackets();
+ScopedVector<OpusPacket> BuildAllOpusPackets();
 
 }  // namespace media