Revert of Remove SK_SUPPORT_LEGACY_DEEPFLATTENING.

include/effects/SkMorphologyImageFilter.h

Index: include/effects/SkMorphologyImageFilter.h
diff --git a/include/effects/SkMorphologyImageFilter.h b/include/effects/SkMorphologyImageFilter.h
index ff7ed89d43bcc7d6398f64fbda8a627e7a2c3716..3f2be45cc5aa1d29346188f0b5f0d217f402d27d 100644
--- a/include/effects/SkMorphologyImageFilter.h
+++ b/include/effects/SkMorphologyImageFilter.h
@@ -34,6 +34,9 @@
     bool filterImageGeneric(Proc procX, Proc procY,
                             Proxy*, const SkBitmap& src, const Context&,
                             SkBitmap* result, SkIPoint* offset) const;
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
+    SkMorphologyImageFilter(SkReadBuffer& buffer);
+#endif
     virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
 #if SK_SUPPORT_GPU
     virtual bool canFilterImageGPU() const SK_OVERRIDE { return true; }
@@ -73,6 +76,10 @@
 protected:
     SkDilateImageFilter(int radiusX, int radiusY, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID)
         : INHERITED(radiusX, radiusY, input, cropRect, uniqueID) {}
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
+    explicit SkDilateImageFilter(SkReadBuffer& buffer) : INHERITED(buffer) {}
+#endif
+
 private:
     typedef SkMorphologyImageFilter INHERITED;
 };
@@ -101,6 +108,9 @@
 protected:
     SkErodeImageFilter(int radiusX, int radiusY, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID)
         : INHERITED(radiusX, radiusY, input, cropRect, uniqueID) {}
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
+    explicit SkErodeImageFilter(SkReadBuffer& buffer) : INHERITED(buffer) {}
+#endif
 
 private:
     typedef SkMorphologyImageFilter INHERITED;