Remove GrRefCnt.h in favor of SkRefCnt.h

include/core/SkRefCnt.h

 
 /*
  * 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.
  */
 
 
 #ifndef SkRefCnt_DEFINED
@@ skipping 142 matching lines @@
 }
 
 /** Check if the argument is non-null, and if so, call obj->unref()
  */
 template <typename T> static inline void SkSafeUnref(T* obj) {
     if (obj) {
         obj->unref();
     }
 }
 
+template<typename T> static inline void SkSafeSetNull(T*& obj) {
+    if (NULL != obj) {
+        obj->unref();
+        obj = NULL;
+    }
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 /**
  *  Utility class that simply unref's its argument in the destructor.
  */
 template <typename T> class SkAutoTUnref : SkNoncopyable {
 public:
     explicit SkAutoTUnref(T* obj = NULL) : fObj(obj) {}
     ~SkAutoTUnref() { SkSafeUnref(fObj); }
 
@@ skipping 92 matching lines @@
     typedef T* SkRefPtr::*unspecified_bool_type;
     operator unspecified_bool_type() const {
         return fObj ? &SkRefPtr::fObj : NULL;
     }
 
 private:
     T* fObj;
 };
 
 #endif