chrome/browser: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

chrome/browser/process_singleton_posix.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.
 
 // 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 40 matching lines @@
 #include <cstring>
 #include <set>
 #include <string>
 
 #include "base/base_paths.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
+#include "base/location.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/posix/safe_strerror.h"
 #include "base/rand_util.h"
 #include "base/sequenced_task_runner_helpers.h"
+#include "base/single_thread_task_runner.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/platform_thread.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
@@ skipping 617 matching lines @@
   // terminated unexpectly.
   timer_.Stop();
 
   std::string current_dir = tokens[1];
   // Remove the first two tokens.  The remaining tokens should be the command
   // line argv array.
   tokens.erase(tokens.begin());
   tokens.erase(tokens.begin());
 
   // Return to the UI thread to handle opening a new browser tab.
-  ui_message_loop_->PostTask(FROM_HERE, base::Bind(
-      &ProcessSingleton::LinuxWatcher::HandleMessage,
-      parent_,
-      current_dir,
-      tokens,
-      this));
+  ui_message_loop_->task_runner()->PostTask(
+      FROM_HERE, base::Bind(&ProcessSingleton::LinuxWatcher::HandleMessage,
+                            parent_, current_dir, tokens, this));
   fd_reader_.StopWatchingFileDescriptor();
 
   // LinuxWatcher::HandleMessage() is in charge of destroying this SocketReader
   // object by invoking SocketReader::FinishWithACK().
 }
 
 void ProcessSingleton::LinuxWatcher::SocketReader::FinishWithACK(
     const char *message, size_t length) {
   if (message && length) {
     // Not necessary to care about the return value.
@@ skipping 343 matching lines @@
 }
 
 void ProcessSingleton::KillProcess(int pid) {
   // TODO(james.su@gmail.com): Is SIGKILL ok?
   int rv = kill(static_cast<base::ProcessHandle>(pid), SIGKILL);
   // ESRCH = No Such Process (can happen if the other process is already in
   // progress of shutting down and finishes before we try to kill it).
   DCHECK(rv == 0 || errno == ESRCH) << "Error killing process: "
                                     << base::safe_strerror(errno);
 }