DM: this must have been missing from the previous CL

dm/DMSrcSinkAndroid.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef DMSrcSinkAndroid_DEFINED
 #define DMSrcSinkAndroid_DEFINED
 
 #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
 
 #include "DMSrcSink.h"
 
 namespace DM {
 
 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
 
 // Draws to the Android Framework's HWUI API.
 
 class HWUISink : public Sink {
 public:
     HWUISink() { }
 
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
-    int enclave() const override { return kGPU_Enclave; }
+    bool serial() const override { return true; }
     const char* fileExtension() const override { return "png"; }
     SinkFlags flags() const override { return SinkFlags{ SinkFlags::kGPU, SinkFlags::kDirect }; }
 };
 
 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
 
 // Trims draw commands to only include those supported by the Android Framework's HWUI API.
 
 class ViaAndroidSDK : public Sink {
 public:
     explicit ViaAndroidSDK(Sink*);
 
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
-    int enclave() const override { return fSink->enclave(); }
+    bool serial() const override { return fSink->serial(); }
     const char* fileExtension() const override { return fSink->fileExtension(); }
     SinkFlags flags() const override {
         SinkFlags flags = fSink->flags();
         flags.approach = SinkFlags::kIndirect;
         return flags;
     }
 
 private:
     SkAutoTDelete<Sink> fSink;
 };
 
 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
 
 }  // namespace DM
 
 #endif  // SK_BUILD_FOR_ANDROID_FRAMEWORK
 
 #endif  // DMSrcSinkAndroid_DEFINED