ScopedProcessInformation protects against process/thread handle leaks from CreateProcess calls.

printing/backend/win_helper.h

 // Copyright (c) 2012 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 PRINTING_BACKEND_WIN_HELPER_H_
 #define PRINTING_BACKEND_WIN_HELPER_H_
 #pragma once
 
 #include <objidl.h>
 #include <winspool.h>
@@ skipping 12 matching lines @@
   typedef HANDLE Handle;
 
   static bool CloseHandle(HANDLE handle) {
     return ::ClosePrinter(handle) != FALSE;
   }
 
   static bool IsHandleValid(HANDLE handle) {
     return handle != NULL;
   }
 
+  static bool IsSame(HANDLE lhs, HANDLE rhs) {
+    return lhs == rhs;
+  }
+
   static HANDLE NullHandle() {
     return NULL;
   }
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PrinterHandleTraits);
 };
 
 typedef base::win::GenericScopedHandle<PrinterHandleTraits> ScopedPrinterHandle;
 
@@ skipping 73 matching lines @@
       IXpsPrintJobStream **document_stream,
       IXpsPrintJobStream **print_ticket_stream);
  private:
   XPSPrintModule() { }
   static bool InitImpl();
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_BACKEND_WIN_HELPER_H_