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

sandbox/win/src/restricted_token.h

Index: sandbox/win/src/restricted_token.h
diff --git a/sandbox/win/src/restricted_token.h b/sandbox/win/src/restricted_token.h
index 6d8e5506918d3b13767aa95d7aee260b2daa37eb..565880e7787d680b0e75880dc07713ec2a344de2 100644
--- a/sandbox/win/src/restricted_token.h
+++ b/sandbox/win/src/restricted_token.h
@@ -45,14 +45,8 @@ namespace sandbox {
 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