Revert of Remove SK_SUPPORT_LEGACY_DEEPFLATTENING.

src/effects/SkTableMaskFilter.cpp

Index: src/effects/SkTableMaskFilter.cpp
diff --git a/src/effects/SkTableMaskFilter.cpp b/src/effects/SkTableMaskFilter.cpp
index dc9b335fd4820994618ab13820b0673b847d2aba..42b4ab6ff6d41cbdc3b613878cb0b7c17be0fcc3 100644
--- a/src/effects/SkTableMaskFilter.cpp
+++ b/src/effects/SkTableMaskFilter.cpp
@@ -82,6 +82,13 @@
     return Create(table);
 }
 
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
+SkTableMaskFilter::SkTableMaskFilter(SkReadBuffer& rb) : INHERITED(rb) {
+    SkASSERT(256 == rb.getArrayCount());
+    rb.readByteArray(fTable, 256);
+}
+#endif
+
 ///////////////////////////////////////////////////////////////////////////////
 
 void SkTableMaskFilter::MakeGammaTable(uint8_t table[256], SkScalar gamma) {