Convert crypto to std::unique_ptr

crypto/encryptor.h

Index: crypto/encryptor.h
diff --git a/crypto/encryptor.h b/crypto/encryptor.h
index e07eb3233b31df76c0d47540f161acc4f72896b8..f1a478ad844cb2a91f4530ea88c26a5f48aec592 100644
--- a/crypto/encryptor.h
+++ b/crypto/encryptor.h
@@ -8,9 +8,9 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include <memory>
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
 #include "base/strings/string_piece.h"
 #include "build/build_config.h"
 #include "crypto/crypto_export.h"
@@ -113,7 +113,7 @@ class CRYPTO_EXPORT Encryptor {
 
   SymmetricKey* key_;
   Mode mode_;
-  scoped_ptr<Counter> counter_;
+  std::unique_ptr<Counter> counter_;
 
 #if defined(USE_OPENSSL)
   bool Crypt(bool do_encrypt,  // Pass true to encrypt, false to decrypt.