Simplify flattening to just write enough to call the factory

src/effects/SkDiscretePathEffect.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkDiscretePathEffect.h"
@@ skipping 57 matching lines @@
                 }
             }
             if (meas.isClosed()) {
                 dst->close();
             }
         }
     } while (meas.nextContour());
     return true;
 }
 
+SkFlattenable* SkDiscretePathEffect::CreateProc(SkReadBuffer& buffer) {
+    SkScalar segLength = buffer.readScalar();
+    SkScalar perterb = buffer.readScalar();
+    uint32_t seed = buffer.readUInt();
+    return Create(segLength, perterb, seed);
+}
+
 void SkDiscretePathEffect::flatten(SkWriteBuffer& buffer) const {
-    this->INHERITED::flatten(buffer);
     buffer.writeScalar(fSegLength);
     buffer.writeScalar(fPerterb);
     buffer.writeUInt(fSeedAssist);
 }
 
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
 SkDiscretePathEffect::SkDiscretePathEffect(SkReadBuffer& buffer) {
     fSegLength = buffer.readScalar();
     fPerterb = buffer.readScalar();
     fSeedAssist = buffer.readUInt();
 }
+#endif
+