Deduplicate CopyBytes in modules/crypto

third_party/WebKit/Source/modules/crypto/SubtleCrypto.cpp

Index: third_party/WebKit/Source/modules/crypto/SubtleCrypto.cpp
diff --git a/third_party/WebKit/Source/modules/crypto/SubtleCrypto.cpp b/third_party/WebKit/Source/modules/crypto/SubtleCrypto.cpp
index 98fbadd81cfbf73e1063099454cef7f617b19828..45b488e09543dd92a45b6e828e6fe0babd6a55ab 100644
--- a/third_party/WebKit/Source/modules/crypto/SubtleCrypto.cpp
+++ b/third_party/WebKit/Source/modules/crypto/SubtleCrypto.cpp
@@ -39,6 +39,7 @@
 #include "modules/crypto/CryptoHistograms.h"
 #include "modules/crypto/CryptoKey.h"
 #include "modules/crypto/CryptoResultImpl.h"
+#include "modules/crypto/CryptoUtilities.h"
 #include "modules/crypto/NormalizeAlgorithm.h"
 #include "platform/json/JSONValues.h"
 #include "public/platform/Platform.h"
@@ -154,11 +155,6 @@ static bool ParseJsonWebKey(const Dictionary& dict,
   return true;
 }
 
-static WebVector<uint8_t> CopyBytes(const DOMArrayPiece& source) {
-  return WebVector<uint8_t>(static_cast<uint8_t*>(source.Data()),
-                            source.ByteLength());
-}
-
 SubtleCrypto::SubtleCrypto() {}
 
 ScriptPromise SubtleCrypto::encrypt(ScriptState* script_state,