Revert of Prototype of RAW decoding in Skia.

src/codec/SkRawAdapterCodec.h

-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkRawAdapterCodec_DEFINED
-#define SkRawAdapterCodec_DEFINED
-
-#include "SkAndroidCodec.h"
-#include "SkCodec.h"
-#include "SkEncodedFormat.h"
-#include "SkRawCodec.h"
-#include "SkStream.h"
-#include "SkTypes.h"
-
-/**
- *  This class implements the functionality of SkAndroidCodec. It uses an
- *  SkRawCodec.
- */
-class SkRawAdapterCodec : public SkAndroidCodec {
-public:
-
-    explicit SkRawAdapterCodec(SkRawCodec*);
-
-    virtual ~SkRawAdapterCodec() {}
-
-protected:
-
-    SkISize onGetSampledDimensions(int sampleSize) const override;
-
-    bool onGetSupportedSubset(SkIRect* /*desiredSubset*/) const override { return false; }
-
-    SkCodec::Result onGetAndroidPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
-            const AndroidOptions& options) override;
-
-private:
-
-    typedef SkAndroidCodec INHERITED;
-};
-#endif // SkRawAdapterCodec_DEFINED