Revert of Provides multiple implementations of Android's SkBitmapRegionDecoder

dm/DMSrcSink.h

Index: dm/DMSrcSink.h
diff --git a/dm/DMSrcSink.h b/dm/DMSrcSink.h
index fe6c91dfadeb5228fddaa3bbb19e0b9188e0e22b..efae87138e50c6684b0ef1e65bfbbb7272aedaab 100644
--- a/dm/DMSrcSink.h
+++ b/dm/DMSrcSink.h
@@ -12,7 +12,6 @@
 #include "SkBBHFactory.h"
 #include "SkBBoxHierarchy.h"
 #include "SkBitmap.h"
-#include "SkBitmapRegionDecoderInterface.h"
 #include "SkCanvas.h"
 #include "SkData.h"
 #include "SkGPipe.h"
@@ -129,34 +128,6 @@
     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: