Enable NVPR with command buffer

tests/RTConfRegistryTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkRTConf.h"
+#include "SkOSEnvironment.h"
 #include "Test.h"
 
-#include <stdlib.h>
-
 // Friended proxy for SkRTConfRegistry::parse()
 template <typename T>
 bool test_rt_conf_parse(SkRTConfRegistry* reg, const char* key, T* value) {
     return reg->parse(key, value);
 }
 
-static void portable_setenv(const char* key, const char* value) {
-#ifdef SK_BUILD_FOR_WIN32
-    _putenv_s(key, value);
-#else
-    setenv(key, value, 1);
-#endif
-}
-
 DEF_TEST(SkRTConfRegistry, reporter) {
     SkRTConfRegistry reg;
 
-    portable_setenv("skia_nonexistent_item", "132");
+    sk_setenv("skia_nonexistent_item", "132");
     int result = 0;
     test_rt_conf_parse(&reg, "nonexistent.item", &result);
     REPORTER_ASSERT(reporter, result == 132);
 }