Deduplicate CopyBytes in modules/crypto

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

Index: third_party/WebKit/Source/modules/crypto/NormalizeAlgorithm.cpp
diff --git a/third_party/WebKit/Source/modules/crypto/NormalizeAlgorithm.cpp b/third_party/WebKit/Source/modules/crypto/NormalizeAlgorithm.cpp
index 93b13d4bfff20c0eb7307e4219c9c11de641f3f8..b8f4bb97e8cbbae1be4e9a6b9ec78b0e9cb0f367 100644
--- a/third_party/WebKit/Source/modules/crypto/NormalizeAlgorithm.cpp
+++ b/third_party/WebKit/Source/modules/crypto/NormalizeAlgorithm.cpp
@@ -39,6 +39,7 @@
 #include "bindings/modules/v8/V8CryptoKey.h"
 #include "core/dom/DOMArrayPiece.h"
 #include "core/dom/DOMTypedArray.h"
+#include "modules/crypto/CryptoUtilities.h"
 #include "platform/wtf/MathExtras.h"
 #include "platform/wtf/PtrUtil.h"
 #include "platform/wtf/Vector.h"
@@ -50,8 +51,6 @@ namespace blink {
 
 namespace {
 
-typedef ArrayBufferOrArrayBufferView BufferSource;
-
 struct AlgorithmNameMapping {
   // Must be an upper case ASCII string.
   const char* const algorithm_name;
@@ -264,11 +263,6 @@ class ErrorContext {
   Vector<const char*, 10> messages_;
 };
 
-static WebVector<uint8_t> CopyBytes(const DOMArrayPiece& source) {
-  return WebVector<uint8_t>(static_cast<const uint8_t*>(source.Data()),
-                            source.ByteLength());
-}
-
 // Defined by the WebCrypto spec as:
 //
 //     typedef (ArrayBuffer or ArrayBufferView) BufferSource;