diff --git a/engine/src/flutter/flow/layers/layer.h b/engine/src/flutter/flow/layers/layer.h
index 8e549e0c5c9..8b551b694de 100644
--- a/engine/src/flutter/flow/layers/layer.h
+++ b/engine/src/flutter/flow/layers/layer.h
@@ -13,7 +13,6 @@
 #include "glue/trace_event.h"
 #include "lib/ftl/logging.h"
 #include "lib/ftl/macros.h"
-#include "skia/ext/refptr.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/core/SkColorFilter.h"
diff --git a/engine/src/flutter/flow/raster_cache.h b/engine/src/flutter/flow/raster_cache.h
index f1263ebd412..a76d7264b9b 100644
--- a/engine/src/flutter/flow/raster_cache.h
+++ b/engine/src/flutter/flow/raster_cache.h
@@ -10,7 +10,6 @@
 
 #include "flow/instrumentation.h"
 #include "lib/ftl/macros.h"
-#include "skia/ext/refptr.h"
 #include "third_party/skia/include/core/SkImage.h"
 #include "third_party/skia/include/core/SkSize.h"
 
diff --git a/engine/src/flutter/skia/BUILD.gn b/engine/src/flutter/skia/BUILD.gn
index 81e2f1db0ca..b99cb18a522 100644
--- a/engine/src/flutter/skia/BUILD.gn
+++ b/engine/src/flutter/skia/BUILD.gn
@@ -133,7 +133,6 @@ config("skia_config") {
     "SK_HAS_JPEG_LIBRARY",
     "SK_HAS_PNG_LIBRARY",
   ]
-  
 }
 
 # Internal-facing config for Skia library code.
@@ -270,7 +269,6 @@ component("skia") {
     "ext/google_logging.cc",
     "ext/image_operations.cc",
     "ext/image_operations.h",
-    "ext/refptr.h",
   ]
 
   # The skia gypi values are relative to the skia_dir, so we need to rebase.
@@ -280,7 +278,7 @@ component("skia") {
 
   sources += [
     "//third_party/skia/src/ports/SkImageGenerator_skia.cpp",
-    
+
     "//third_party/skia/src/codec/SkAndroidCodec.cpp",
     "//third_party/skia/src/codec/SkBmpCodec.cpp",
     "//third_party/skia/src/codec/SkBmpMaskCodec.cpp",
diff --git a/engine/src/flutter/skia/config/SkUserConfig.h b/engine/src/flutter/skia/config/SkUserConfig.h
index 8072755b708..2f61a7dc9fb 100644
--- a/engine/src/flutter/skia/config/SkUserConfig.h
+++ b/engine/src/flutter/skia/config/SkUserConfig.h
@@ -166,12 +166,6 @@
 
 // ===== Begin Chrome-specific definitions =====
 
-#ifdef SK_DEBUG
-#define SK_REF_CNT_MIXIN_INCLUDE "sk_ref_cnt_ext_debug.h"
-#else
-#define SK_REF_CNT_MIXIN_INCLUDE "sk_ref_cnt_ext_release.h"
-#endif
-
 #define SK_SCALAR_IS_FLOAT
 #undef SK_SCALAR_IS_FIXED
 
diff --git a/engine/src/flutter/skia/config/sk_ref_cnt_ext_debug.h b/engine/src/flutter/skia/config/sk_ref_cnt_ext_debug.h
deleted file mode 100644
index b2b66adba72..00000000000
--- a/engine/src/flutter/skia/config/sk_ref_cnt_ext_debug.h
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef SK_REF_CNT_EXT_DEBUG_H_
-#define SK_REF_CNT_EXT_DEBUG_H_
-
-#ifdef SK_REF_CNT_EXT_RELEASE_H_
-#error Only one SkRefCnt should be used.
-#endif
-
-// Alternate implementation of SkRefCnt for Chromium debug builds
-class SK_API SkRefCnt : public SkRefCntBase {
-public:
-  SkRefCnt() : flags_(0) {}
-  void ref() const { SkASSERT(flags_ != AdoptionRequired_Flag); SkRefCntBase::ref(); }
-  void adopted() const { flags_ |= Adopted_Flag; }
-  void requireAdoption() const { flags_ |= AdoptionRequired_Flag; }
-  void deref() const { SkRefCntBase::unref(); }
-private:
-  enum {
-    Adopted_Flag = 0x1,
-    AdoptionRequired_Flag = 0x2,
-  };
-
-  mutable int flags_;
-};
-
-// Bootstrap for Blink's WTF::RefPtr
-
-namespace WTF {
-  inline void adopted(const SkRefCnt* object) {
-    if (!object)
-      return;
-    object->adopted();
-  }
-  inline void requireAdoption(const SkRefCnt* object) {
-    if (!object)
-      return;
-    object->requireAdoption();
-  }
-};
-
-using WTF::adopted;
-using WTF::requireAdoption;
-
-#endif
-
diff --git a/engine/src/flutter/skia/config/sk_ref_cnt_ext_release.h b/engine/src/flutter/skia/config/sk_ref_cnt_ext_release.h
deleted file mode 100644
index 7736c84cf7e..00000000000
--- a/engine/src/flutter/skia/config/sk_ref_cnt_ext_release.h
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef SK_REF_CNT_EXT_RELEASE_H_
-#define SK_REF_CNT_EXT_RELEASE_H_
-
-#ifdef SK_REF_CNT_EXT_DEBUG_H_
-#error Only one SkRefCnt should be used.
-#endif
-
-// Alternate implementation of SkRefCnt for Chromium release builds
-class SK_API SkRefCnt : public SkRefCntBase {
-public:
-  void deref() const { SkRefCntBase::unref(); }
-};
-
-#endif
-