Move WTF classes related to typed arrays to wtf/typed_arrays

third_party/WebKit/Source/wtf/ArrayPiece.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef ArrayPiece_h
-#define ArrayPiece_h
-
-#include "wtf/Allocator.h"
-#include "wtf/Forward.h"
-#include "wtf/WTFExport.h"
-
-namespace WTF {
-
-// This class is for passing around un-owned bytes as a pointer + length.
-// It supports implicit conversion from several other data types.
-//
-// ArrayPiece has the concept of being "null". This is different from an empty
-// byte range. It is invalid to call methods other than isNull() on such
-// instances.
-//
-// IMPORTANT: The data contained by ArrayPiece is NOT OWNED, so caution must be
-//            taken to ensure it is kept alive.
-class WTF_EXPORT ArrayPiece {
-    DISALLOW_NEW();
-public:
-    // Constructs a "null" ArrayPiece object.
-    ArrayPiece();
-
-    ArrayPiece(void* data, unsigned byteLength);
-
-    // Constructs an ArrayPiece from the given ArrayBuffer. If the input is a
-    // nullptr, then the constructed instance will be isNull().
-    ArrayPiece(ArrayBuffer*);
-    ArrayPiece(ArrayBufferView*);
-
-    bool isNull() const;
-    void* data() const;
-    unsigned char* bytes() const;
-    unsigned byteLength() const;
-
-protected:
-    void initWithData(void* data, unsigned byteLength);
-
-private:
-    void initNull();
-
-    void* m_data;
-    unsigned m_byteLength;
-    bool m_isNull;
-};
-
-} // namespace WTF
-
-using WTF::ArrayPiece;
-
-#endif // ArrayPiece_h