Implement LoadTemporaryRoot for Windows

base/openssl_util.h

 // Copyright (c) 2010 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 BASE_OPENSSL_UTIL_H_
 #define BASE_OPENSSL_UTIL_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/tracked.h"
 
 namespace base {
 
 // A helper class that takes care of destroying OpenSSL objects when it goes out
 // of scope.
 template <typename T, void (*destructor)(T*)>
 class ScopedOpenSSL {
  public:
-  explicit ScopedOpenSSL(T* ptr_) : ptr_(ptr_) { }
-  ~ScopedOpenSSL() { if (ptr_) (*destructor)(ptr_); }
+  explicit ScopedOpenSSL(T* ptr) : ptr_(ptr) {}
+  ~ScopedOpenSSL() {
+    reset(NULL);

[wtc, 2010/11/23 00:30:11]

Nit: since you let the argument default to NULL, you can
just write
    reset();
here.

+  }
+
+  void reset(T* p = NULL) {
+    if (ptr_ != p) {
+      (*destructor)(ptr_);
+      ptr_ = p;
+    }
+  }
 
   T* get() const { return ptr_; }
 
  private:
   T* ptr_;
 };
 
 // Provides a buffer of at least MIN_SIZE bytes, for use when calling OpenSSL's
 // SHA256, HMAC, etc functions, adapting the buffer sizing rules to meet those
 // of the our base wrapper APIs.
@@ skipping 40 matching lines @@
 // OpenSSL will be properly shut down on program exit.
 void EnsureOpenSSLInit();
 
 // Drains the OpenSSL ERR_get_error stack. On a debug build the error codes
 // are send to VLOG(1), on a release build they are disregarded.
 void ClearOpenSSLERRStack();
 
 }  // namespace base
 
 #endif  // BASE_OPENSSL_UTIL_H_