SkPDF: Move SkFlate into src/pdf (part 1/3) [reland]

src/core/SkFlate.h

 
 /*
  * Copyright 2010 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
-
-
-#ifndef SkFlate_DEFINED
-#define SkFlate_DEFINED
-
-#include "SkTypes.h"
-
-#include "SkStream.h"
-class SkData;
-
-/** \class SkFlate
-    A class to provide access to the flate compression algorithm.
-*/
-class SkFlate {
-public:
-    /**
-     *  Use the flate compression algorithm to compress the data in src,
-     *  putting the result into dst.  Returns false if an error occurs.
-     */
-    static bool Deflate(SkStream* src, SkWStream* dst);
-
-    /**
-     *  Use the flate compression algorithm to compress the data in src,
-     *  putting the result into dst.  Returns false if an error occurs.
-     */
-    static bool Deflate(const void* src, size_t len, SkWStream* dst);
-
-    /**
-     *  Use the flate compression algorithm to compress the data,
-     *  putting the result into dst.  Returns false if an error occurs.
-     */
-    static bool Deflate(const SkData*, SkWStream* dst);
-
-    /** Use the flate compression algorithm to decompress the data in src,
-        putting the result into dst.  Returns false if an error occurs.
-     */
-    static bool Inflate(SkStream* src, SkWStream* dst);
-};
-
-/**
-  * Wrap a stream in this class to compress the information written to
-  * this stream using the Deflate algorithm.  Uses Zlib's
-  * Z_DEFAULT_COMPRESSION level.
-  *
-  * See http://en.wikipedia.org/wiki/DEFLATE
-  */
-class SkDeflateWStream : public SkWStream {
-public:
-    /** Does not take ownership of the stream. */
-    SkDeflateWStream(SkWStream*);
-
-    /** The destructor calls finalize(). */
-    ~SkDeflateWStream();
-
-    /** Write the end of the compressed stream.  All subsequent calls to
-        write() will fail. Subsequent calls to finalize() do nothing. */
-    void finalize();
-
-    // The SkWStream interface:
-    bool write(const void*, size_t) override;
-    size_t bytesWritten() const override;
-
-private:
-    struct Impl;
-    SkAutoTDelete<Impl> fImpl;
-};
-
-#endif  // SkFlate_DEFINED