Remove DeleteTask and convert remaining users.

chrome/browser/process_singleton_linux.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.
 
 // On Linux, when the user tries to launch a second copy of chrome, we check
 // for a socket in the user's profile directory.  If the socket file is open we
 // send a message to the first chrome browser process with the current
 // directory and second process command line flags.  The second process then
 // exits.
 //
@@ skipping 48 matching lines @@
 
 #include "base/base_paths.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/eintr_wrapper.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
+#include "base/message_loop_helpers.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/rand_util.h"
 #include "base/safe_strerror_posix.h"
 #include "base/stl_util.h"
 #include "base/string_number_conversions.h"
 #include "base/string_split.h"
 #include "base/stringprintf.h"
 #include "base/sys_string_conversions.h"
 #include "base/threading/platform_thread.h"
@@ skipping 475 matching lines @@
     NOTREACHED();
   }
 
   // MessageLoop::DestructionObserver
   virtual void WillDestroyCurrentMessageLoop() {
     fd_watcher_.StopWatchingFileDescriptor();
   }
 
  private:
   friend struct BrowserThread::DeleteOnThread<BrowserThread::IO>;
-  friend class DeleteTask<ProcessSingleton::LinuxWatcher>;
+  friend class base::DeleteHelper<ProcessSingleton::LinuxWatcher>;
 
   virtual ~LinuxWatcher() {
     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
     STLDeleteElements(&readers_);
   }
 
   // Removes and deletes the SocketReader.
   void RemoveSocketReader(SocketReader* reader);
 
   MessageLoopForIO::FileDescriptorWatcher fd_watcher_;
@@ skipping 418 matching lines @@
                  sock));
 
   return true;
 }
 
 void ProcessSingleton::Cleanup() {
   UnlinkPath(socket_path_);
   UnlinkPath(cookie_path_);
   UnlinkPath(lock_path_);
 }