Move SkBitmapRegionDecoder to include/android and src/android

tools/android/SkBitmapRegionCodec.h

-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkBitmap.h"
-#include "SkBitmapRegionDecoder.h"
-#include "SkAndroidCodec.h"
-
-/*
- * This class implements SkBitmapRegionDecoder using an SkAndroidCodec.
- */
-class SkBitmapRegionCodec : public SkBitmapRegionDecoder {
-public:
-
-    /*
-     * Takes ownership of pointer to codec
-     */
-    SkBitmapRegionCodec(SkAndroidCodec* codec);
-
-    bool decodeRegion(SkBitmap* bitmap, SkBRDAllocator* allocator,
-                      const SkIRect& desiredSubset, int sampleSize,
-                      SkColorType colorType, bool requireUnpremul) override;
-
-    bool conversionSupported(SkColorType colorType) override;
-
-    SkEncodedFormat getEncodedFormat() override { return fCodec->getEncodedFormat(); }
-
-private:
-
-    SkAutoTDelete<SkAndroidCodec> fCodec;
-
-    typedef SkBitmapRegionDecoder INHERITED;
-
-};