Revert of Provides multiple implementations of Android's SkBitmapRegionDecoder

dm/DMSrcSink.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.
  */
 
 #ifndef DMSrcSink_DEFINED
 #define DMSrcSink_DEFINED
 
 #include "DMGpuSupport.h"
 #include "SkBBHFactory.h"
 #include "SkBBoxHierarchy.h"
 #include "SkBitmap.h"
-#include "SkBitmapRegionDecoderInterface.h"
 #include "SkCanvas.h"
 #include "SkData.h"
 #include "SkGPipe.h"
 #include "SkPicture.h"
 #include "gm.h"
 
 namespace DM {
 
 // This is just convenience.  It lets you use either return "foo" or return SkStringPrintf(...).
 struct ImplicitString : public SkString {
@@ skipping 96 matching lines @@
     SkISize size() const override;
     Name name() const override;
     bool veto(SinkFlags) const override;
 private:
     Path                    fPath;
     Mode                    fMode;
     DstColorType            fDstColorType;
     float                   fScale;
 };
 
-// Allows for testing of various implementations of Android's BitmapRegionDecoder
-class BRDSrc : public Src {
-public:
-    enum Mode {
-        // Decode the entire image as one region.
-        kFullImage_Mode,
-        // Splits the image into multiple regions using a divisor and decodes the regions
-        // separately.  Also, this test adds a border of a few pixels to each of the regions
-        // that it is decoding.  This tests the behavior when a client asks for a region that
-        // does not fully fit in the image.
-        kDivisor_Mode,
-    };
-
-    BRDSrc(Path, SkBitmapRegionDecoderInterface::Strategy, Mode, CodecSrc::DstColorType, uint32_t);
-
-    static float GetScale(uint32_t sampleSize) { return 1.0f / (float) sampleSize; }
-
-    Error draw(SkCanvas*) const override;
-    SkISize size() const override;
-    Name name() const override;
-    bool veto(SinkFlags) const override;
-private:
-    Path                                     fPath;
-    SkBitmapRegionDecoderInterface::Strategy fStrategy;
-    Mode                                     fMode;
-    CodecSrc::DstColorType                   fDstColorType;
-    uint32_t                                 fSampleSize;
-};
 
 class ImageSrc : public Src {
 public:
     // divisor == 0 means decode the whole image
     // divisor > 0 means decode in subsets, dividing into a divisor x divisor grid.
     explicit ImageSrc(Path path, int divisor = 0);
 
     Error draw(SkCanvas*) const override;
     SkISize size() const override;
     Name name() const override;
@@ skipping 169 matching lines @@
 
 class ViaTwice : public Via {
 public:
     explicit ViaTwice(Sink* sink) : Via(sink) {}
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
 };
 
 }  // namespace DM
 
 #endif//DMSrcSink_DEFINED