Revert of Delete SkFlattenable::Type

src/core/SkScalerContext.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 "SkScalerContext.h"
 #include "SkAutoPixmapStorage.h"
@@ skipping 44 matching lines @@
     fRsbDelta = 0;
     fLsbDelta = 0;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 #ifdef SK_DEBUG
     #define DUMP_RECx
 #endif
 
-static SkFlattenable* load_flattenable(const SkDescriptor* desc, uint32_t tag) {
+static SkFlattenable* load_flattenable(const SkDescriptor* desc, uint32_t tag,
+                                       SkFlattenable::Type ft) {
     SkFlattenable*  obj = nullptr;
     uint32_t        len;
     const void*     data = desc->findEntry(tag, &len);
 
     if (data) {
         SkReadBuffer buffer(data, len);
-        obj = buffer.readFlattenable();
+        obj = buffer.readFlattenable(ft);
         SkASSERT(buffer.offset() == buffer.size());
     }
     return obj;
 }
 
 SkScalerContext::SkScalerContext(SkTypeface* typeface, const SkDescriptor* desc)
     : fRec(*static_cast<const Rec*>(desc->findEntry(kRec_SkDescriptorTag, nullptr)))
 
     , fTypeface(SkRef(typeface))
-    , fPathEffect(static_cast<SkPathEffect*>(load_flattenable(desc, kPathEffect_SkDescriptorTag)))
-    , fMaskFilter(static_cast<SkMaskFilter*>(load_flattenable(desc, kMaskFilter_SkDescriptorTag)))
-    , fRasterizer(static_cast<SkRasterizer*>(load_flattenable(desc, kRasterizer_SkDescriptorTag)))
+    , fPathEffect(static_cast<SkPathEffect*>(load_flattenable(desc, kPathEffect_SkDescriptorTag,
+                                             SkFlattenable::kSkPathEffect_Type)))
+    , fMaskFilter(static_cast<SkMaskFilter*>(load_flattenable(desc, kMaskFilter_SkDescriptorTag,
+                                             SkFlattenable::kSkMaskFilter_Type)))
+    , fRasterizer(static_cast<SkRasterizer*>(load_flattenable(desc, kRasterizer_SkDescriptorTag,
+                                             SkFlattenable::kSkRasterizer_Type)))
       // Initialize based on our settings. Subclasses can also force this.
     , fGenerateImageFromPath(fRec.fFrameWidth > 0 || fPathEffect != nullptr || fRasterizer != nullptr)
 
     , fPreBlend(fMaskFilter ? SkMaskGamma::PreBlend() : SkScalerContext::GetMaskPreBlend(fRec))
     , fPreBlendForFilter(fMaskFilter ? SkScalerContext::GetMaskPreBlend(fRec)
                                      : SkMaskGamma::PreBlend())
 {
 #ifdef DUMP_REC
     desc->assertChecksum();
     SkDebugf("SkScalerContext checksum %x count %d length %d\n",
@@ skipping 781 matching lines @@
 
 SkScalerContext* SkTypeface::createScalerContext(const SkDescriptor* desc,
                                                  bool allowFailure) const {
     SkScalerContext* c = this->onCreateScalerContext(desc);
 
     if (!c && !allowFailure) {
         c = new SkScalerContext_Empty(const_cast<SkTypeface*>(this), desc);
     }
     return c;
 }