Remove stl_util's deletion functions from media/.

media/formats/mp2t/mp2t_stream_parser.h

Index: media/formats/mp2t/mp2t_stream_parser.h
diff --git a/media/formats/mp2t/mp2t_stream_parser.h b/media/formats/mp2t/mp2t_stream_parser.h
index d013ee48796fd1cf44bb576748dffc4c698401df..7c5c6951c3875b58b765ae21cb62cfd2aef8213e 100644
--- a/media/formats/mp2t/mp2t_stream_parser.h
+++ b/media/formats/mp2t/mp2t_stream_parser.h
@@ -46,8 +46,6 @@ class MEDIA_EXPORT Mp2tStreamParser : public StreamParser {
   bool Parse(const uint8_t* buf, int size) override;
 
  private:
-  typedef std::map<int, PidState*> PidMap;
-
   struct BufferQueueWithConfig {
     BufferQueueWithConfig(bool is_cfg_sent,
                           const AudioDecoderConfig& audio_cfg,
@@ -114,7 +112,7 @@ class MEDIA_EXPORT Mp2tStreamParser : public StreamParser {
   ByteQueue ts_byte_queue_;
 
   // List of PIDs and their state.
-  PidMap pids_;
+  std::map<int, std::unique_ptr<PidState>> pids_;
 
   // Selected audio and video PIDs.
   int selected_audio_pid_;