sandbox/win: Fix warnings found by clang chromium-style plugin on Windows.

sandbox/win/src/restricted_token.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 SANDBOX_SRC_RESTRICTED_TOKEN_H_
 #define SANDBOX_SRC_RESTRICTED_TOKEN_H_
 
 #include <windows.h>
 #include <vector>
 
@@ skipping 27 matching lines @@
 //    HANDLE token_handle;
 //    err_code = restricted_token.GetRestrictedTokenHandle(&token_handle);
 //    if (ERROR_SUCCESS != err_code) {
 //      // handle error.
 //    }
 //    [...]
 //    CloseHandle(token_handle);
 class RestrictedToken {
  public:
   // Init() has to be called before calling any other method in the class.
-  RestrictedToken()
-      : init_(false), effective_token_(NULL),
-        integrity_level_(INTEGRITY_LEVEL_LAST) { }
-
-  ~RestrictedToken() {
-    if (effective_token_)
-      CloseHandle(effective_token_);
-  }
+  RestrictedToken();
+  ~RestrictedToken();
 
   // Initializes the RestrictedToken object with effective_token.
   // If effective_token is NULL, it initializes the RestrictedToken object with
   // the effective token of the current process.
   unsigned Init(HANDLE effective_token);
 
   // Creates a restricted token and returns its handle using the token_handle
   // output parameter. This handle has to be closed by the caller.
   // If the function succeeds, the return value is ERROR_SUCCESS. If the
   // function fails, the return value is the win32 error code corresponding to
@@ skipping 124 matching lines @@
   IntegrityLevel integrity_level_;
   // Tells if the object is initialized or not (if Init() has been called)
   bool init_;
 
   DISALLOW_COPY_AND_ASSIGN(RestrictedToken);
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_SRC_RESTRICTED_TOKEN_H_