Cleanup: Convert chrome_browser_main_linux.cc to use the blocking thread pool.

chrome/browser/sxs_linux.cc

 // Copyright 2013 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 "chrome/browser/sxs_linux.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 71 matching lines @@
   return base::ImportantFileWriter::WriteFileAtomically(
       channels_path,
       JoinString(user_data_dir_channels, "\n"));
 }
 
 }  // namespace
 
 namespace sxs_linux {
 
 void AddChannelMarkToUserDataDir() {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE));
+  DCHECK(content::BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
   base::FilePath user_data_dir;
   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir)) {
     LOG(ERROR) << "Failed to get user data dir path. The profile will not be "
                << "automatically migrated for updated Linux packages.";
     return;
   }
 
   if (!DoAddChannelMarkToUserDataDir(user_data_dir)) {
     LOG(ERROR) << "Failed to add channel mark to the user data dir ("
                << user_data_dir.value() << "). This profile will not be "
                << "automatically migrated for updated Linux packages.";
   }
 }
 
 bool ShouldMigrateUserDataDir() {
-  return CommandLine::ForCurrentProcess()->HasSwitch(
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kMigrateDataDirForSxS);
 }
 
 int MigrateUserDataDir() {
   DCHECK(ShouldMigrateUserDataDir());
 
   base::FilePath source_path;
   if (!PathService::Get(chrome::DIR_USER_DATA, &source_path)) {
     LOG(ERROR) << "Failed to get value of chrome::DIR_USER_DATA";
     return chrome::RESULT_CODE_SXS_MIGRATION_FAILED;
@@ skipping 16 matching lines @@
     return chrome::RESULT_CODE_SXS_MIGRATION_FAILED;
   }
 
   if (user_data_dir_channels[0] != GetChannelMarkForThisExecutable()) {
     LOG(WARNING) << "User data dir migration is only possible when the profile "
                  << "is used with the same channel.";
     return chrome::RESULT_CODE_SXS_MIGRATION_FAILED;
   }
 
   base::FilePath target_path =
-      CommandLine::ForCurrentProcess()->GetSwitchValuePath(
+      base::CommandLine::ForCurrentProcess()->GetSwitchValuePath(
           switches::kMigrateDataDirForSxS);
 
   if (!base::Move(source_path, target_path)) {
     LOG(ERROR) << "Failed to rename '" << source_path.value()
                << "' to '" << target_path.value() << "'";
     return chrome::RESULT_CODE_SXS_MIGRATION_FAILED;
   }
 
   return content::RESULT_CODE_NORMAL_EXIT;
 }
 
 }  // namespace sxs_linux