Add a void* parameter to the AtExitManager callbacks.

base/at_exit.cc

 // Copyright (c) 2006-2008 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/at_exit.h"
 #include "base/logging.h"
 
 namespace base {
 
 // Keep a stack of registered AtExitManagers.  We always operate on the most
@@ skipping 17 matching lines @@
     NOTREACHED() << "Tried to ~AtExitManager without an AtExitManager";
     return;
   }
   DCHECK(g_top_manager == this);
 
   ProcessCallbacksNow();
   g_top_manager = next_manager_;
 }
 
 // static
-void AtExitManager::RegisterCallback(AtExitCallbackType func) {
+void AtExitManager::RegisterCallback(AtExitCallbackType func, void* param) {
   if (!g_top_manager) {
     NOTREACHED() << "Tried to RegisterCallback without an AtExitManager";
     return;
   }
 
+  DCHECK(func);
+
   AutoLock lock(g_top_manager->lock_);
-  g_top_manager->stack_.push(func);
+  g_top_manager->stack_.push(CallbackAndParam(func, param));
 }
 
 // static
 void AtExitManager::ProcessCallbacksNow() {
   if (!g_top_manager) {
     NOTREACHED() << "Tried to ProcessCallbacksNow without an AtExitManager";
     return;
   }
 
   AutoLock lock(g_top_manager->lock_);
 
   while (!g_top_manager->stack_.empty()) {
-    AtExitCallbackType func = g_top_manager->stack_.top();
+    CallbackAndParam callback_and_param = g_top_manager->stack_.top();
     g_top_manager->stack_.pop();
-    if (func)
-      func();
+
+    callback_and_param.func_(callback_and_param.param_);
   }
 }
 
 }  // namespace base
-