Simplify flattening to just write enough to call the factory

src/effects/SkEmbossMaskFilter.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 "SkEmbossMaskFilter.h"
 #include "SkBlurMaskFilter.h"
 #include "SkBlurMask.h"
@@ skipping 106 matching lines @@
                    SkPoint::Length(fLight.fDirection[0], fLight.fDirection[1]));
 
     SkEmbossMask::Emboss(dst, light);
 
     // restore original alpha
     memcpy(dst->fImage, src.fImage, src.computeImageSize());
 
     return true;
 }
 
-SkEmbossMaskFilter::SkEmbossMaskFilter(SkReadBuffer& buffer)
-        : SkMaskFilter(buffer) {
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
+SkEmbossMaskFilter::SkEmbossMaskFilter(SkReadBuffer& buffer) : SkMaskFilter(buffer) {
     SkASSERT(buffer.getArrayCount() == sizeof(Light));
     buffer.readByteArray(&fLight, sizeof(Light));
     SkASSERT(fLight.fPad == 0); // for the font-cache lookup to be clean
     fBlurSigma = buffer.readScalar();
 }
+#endif
+
+SkFlattenable* SkEmbossMaskFilter::CreateProc(SkReadBuffer& buffer) {
+    Light light;
+    if (buffer.readByteArray(&light, sizeof(Light))) {
+        light.fPad = 0; // for the font-cache lookup to be clean
+        const SkScalar sigma = buffer.readScalar();
+        return Create(sigma, light);
+    }
+    return NULL;
+}
 
 void SkEmbossMaskFilter::flatten(SkWriteBuffer& buffer) const {
-    this->INHERITED::flatten(buffer);
-
     Light tmpLight = fLight;
     tmpLight.fPad = 0;    // for the font-cache lookup to be clean
     buffer.writeByteArray(&tmpLight, sizeof(tmpLight));
     buffer.writeScalar(fBlurSigma);
 }
 
 #ifndef SK_IGNORE_TO_STRING
 void SkEmbossMaskFilter::toString(SkString* str) const {
     str->append("SkEmbossMaskFilter: (");
 
     str->append("direction: (");
     str->appendScalar(fLight.fDirection[0]);
     str->append(", ");
     str->appendScalar(fLight.fDirection[1]);
     str->append(", ");
     str->appendScalar(fLight.fDirection[2]);
     str->append(") ");
 
     str->appendf("ambient: %d specular: %d ",
         fLight.fAmbient, fLight.fSpecular);
 
     str->append("blurSigma: ");
     str->appendScalar(fBlurSigma);
     str->append(")");
 }
 #endif