Callback API Change: Reimplement Bind(); support IgnoreResult, full currying, and use less types

base/file_util_proxy.cc

 // Copyright (c) 2011 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/file_util_proxy.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/message_loop_proxy.h"
@@ skipping 94 matching lines @@
                      const FileUtilProxy::CloseTask& close_task)
       : message_loop_proxy_(message_loop_proxy),
         close_task_(close_task),
         file_handle_(kInvalidPlatformFileValue),
         created_(false),
         error_(PLATFORM_FILE_OK) {}
 
   ~CreateOrOpenHelper() {
     if (file_handle_ != kInvalidPlatformFileValue) {
       message_loop_proxy_->PostTask(
-          FROM_HERE, base::Bind(close_task_, file_handle_));
+          FROM_HERE,
+          base::Bind(base::IgnoreResult(close_task_), file_handle_));
     }
   }
 
   void RunWork(const FileUtilProxy::CreateOrOpenTask& task) {
     error_ = task.Run(&file_handle_, &created_);
   }
 
   void Reply(const FileUtilProxy::CreateOrOpenCallback& callback) {
     DCHECK(!callback.is_null());
     callback.Run(error_, PassPlatformFile(&file_handle_), created_);
@@ skipping 379 matching lines @@
     PlatformFile file_handle,
     const StatusCallback& callback) {
   PlatformFileError* result = new PlatformFileError;
   return message_loop_proxy->PostTaskAndReply(
       FROM_HERE,
       ReturnAsParam(close_task, file_handle, result),
       ReplyHelper(callback, Owned(result)));
 }
 
 }  // namespace base