Open th32Process when enumerating processes.

base/debug/gdi_debug_util_win.cc

 // Copyright 2014 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.
 #include "base/debug/gdi_debug_util_win.h"
 
 #include <cmath>
 
 #include <psapi.h>
 #include <stddef.h>
 #include <TlHelp32.h>
@@ skipping 21 matching lines @@
   proc_entry.dwSize = sizeof(PROCESSENTRY32);
   CHECK(Process32First(snapshot, &proc_entry));
 
   do {
     if (parent_pid != proc_entry.th32ParentProcessID)
       continue;
     // Got a child process. Compute GDI usage.
     base::win::ScopedHandle process(
         OpenProcess(PROCESS_QUERY_INFORMATION,
                     FALSE,
-                    proc_entry.th32ParentProcessID));
+                    proc_entry.th32ProcessID));
     if (!process.IsValid())
       continue;
 
     int num_gdi_handles = GetGuiResources(process.Get(), GR_GDIOBJECTS);
     int num_user_handles = GetGuiResources(process.Get(), GR_USEROBJECTS);
 
     // Compute sum and peak counts.
     ++child_count;
     sum_user_count += num_user_handles;
     sum_gdi_count += num_gdi_handles;
@@ skipping 61 matching lines @@
         0, &small_data, shared_section, 0);
     CHECK(small_bitmap != NULL);
     DeleteObject(small_bitmap);
   }
   // Maybe the child processes are the ones leaking GDI or USER resouces.
   CollectChildGDIUsageAndDie(GetCurrentProcessId());
 }
 
 }  // namespace debug
 }  // namespace base