Clone of chromium aad1ce808763f59c7a3753e08f1500a104ecc6fd refs/remotes/origin/HEAD
diff --git a/skia/config/sk_ref_cnt_ext_debug.h b/skia/config/sk_ref_cnt_ext_debug.h
new file mode 100644
index 0000000..b2b66ad
--- /dev/null
+++ b/skia/config/sk_ref_cnt_ext_debug.h
@@ -0,0 +1,48 @@
+// 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
+
