Revert of Replace EncodeBitmap with an interface.

include/core/SkPixelSerializer.h

-/*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkPixelSerializer_DEFINED
-#define SkPixelSerializer_DEFINED
-
-#include "SkRefCnt.h"
-
-struct SkImageInfo;
-
-/**
- *  Interface for serializing pixels, e.g. SkBitmaps in an SkPicture.
- */
-class SkPixelSerializer : public SkRefCnt {
-public:
-    /**
-     *  Call to determine if the client wants to serialize the encoded data. If
-     *  false, serialize another version (e.g. the result of encodePixels).
-     */
-    bool useEncodedData(const void* data, size_t len) {
-        return this->onUseEncodedData(data, len);
-    }
-
-    /**
-     *  Call to get the client's version of encoding these pixels. If it
-     *  returns NULL, serialize the raw pixels.
-     */
-    SkData* encodePixels(const SkImageInfo& info, void* pixels, size_t rowBytes) {
-        return this->onEncodePixels(info, pixels, rowBytes);
-    }
-
-protected:
-    /**
-     *  Return true if you want to serialize the encoded data, false if you want
-     *  another version serialized (e.g. the result of encodePixels).
-     */
-    virtual bool onUseEncodedData(const void* data, size_t len) = 0;
-
-    /**
-     *  If you want to encode these pixels, return the encoded data as an SkData
-     *  Return null if you want to serialize the raw pixels.
-     */
-    virtual SkData* onEncodePixels(const SkImageInfo&, void* pixels, size_t rowBytes) = 0;
-};
-#endif // SkPixelSerializer_DEFINED