Add support for serializing/deserializing of SkDrawable

src/core/SkGlobalInitialization_core.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapProcShader.h"
 #include "SkColorFilter.h"
 #include "SkColorFilterShader.h"
 #include "SkColorShader.h"
 #include "SkComposeShader.h"
 #include "SkEmptyShader.h"
 #include "SkFlattenable.h"
 #include "SkImageShader.h"
 #include "SkLocalMatrixShader.h"
+#include "SkMatrixImageFilter.h"
 #include "SkOnce.h"
 #include "SkPathEffect.h"
 #include "SkPictureShader.h"
-#include "SkMatrixImageFilter.h"
+#include "SkRecordedDrawable.h"
 #include "SkXfermode.h"
 
 /*
  *  Registers all of the required effects subclasses for picture deserialization.
  *
  *  Optional subclasses (e.g. Blur) should be registered in the ports/ version of this file,
  *  inside the InitEffects() method.
  */
 void SkFlattenable::PrivateInitializer::InitCore() {
     // Shader
@@ skipping 11 matching lines @@
 
     // ImageFilter
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkMatrixImageFilter)
 
     // ColorFilter
     SkColorFilter::InitializeFlattenables();
 
     // Xfermode
     SkXfermode::InitializeFlattenables();
 
+    // Drawable
+    SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkRecordedDrawable)
+
     // Now initialize any optional/additional effects (implemented in src/ports)
     InitEffects();
 };
 
 void SkFlattenable::InitializeFlattenablesIfNeeded() {
     static SkOnce once;
     once(SkFlattenable::PrivateInitializer::InitCore);
 }