Convert media/formats to std::unique_ptr

media/formats/webm/webm_crypto_helpers.h

Index: media/formats/webm/webm_crypto_helpers.h
diff --git a/media/formats/webm/webm_crypto_helpers.h b/media/formats/webm/webm_crypto_helpers.h
index 284b2d083dd865f1be3246754b517746a44e5293..1adbae7e7a21a5e68ea9f85c099cbe548794efcf 100644
--- a/media/formats/webm/webm_crypto_helpers.h
+++ b/media/formats/webm/webm_crypto_helpers.h
@@ -7,7 +7,8 @@
 
 #include <stdint.h>
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "media/base/decoder_buffer.h"
 
 namespace media {
@@ -23,7 +24,7 @@ bool WebMCreateDecryptConfig(const uint8_t* data,
                              int data_size,
                              const uint8_t* key_id,
                              int key_id_size,
-                             scoped_ptr<DecryptConfig>* decrypt_config,
+                             std::unique_ptr<DecryptConfig>* decrypt_config,
                              int* data_offset);
 
 }  // namespace media