Remove an unused function after https://codereview.chromium.org/1581473002

chrome/browser/process_singleton_win.cc

 // Copyright (c) 2012 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/process_singleton.h"
 
 #include <shellapi.h>
 #include <stddef.h>
 
 #include "base/base_paths.h"
@@ skipping 154 matching lines @@
   if (!ParseCommandLine(cds, &parsed_command_line, &current_directory)) {
     *result = TRUE;
     return true;
   }
 
   *result = notification_callback.Run(parsed_command_line, current_directory) ?
       TRUE : FALSE;
   return true;
 }
 
-// Returns true if Chrome needs to be relaunched into Windows 8 immersive mode.
-// Following conditions apply:-
-// 1. Windows 8 or greater.
-// 2. Not in Windows 8 immersive mode.
-// 3. Chrome is default browser.
-// 4. Process integrity level is not high.
-// 5. The profile data directory is the default directory.
-// 6. Last used mode was immersive/machine is a tablet.
-// TODO(ananta)
-// Move this function to a common place as the Windows 8 delegate_execute
-// handler can possibly use this.
-bool ShouldLaunchInWindows8ImmersiveMode(const base::FilePath& user_data_dir) {
-  // Returning false from this function doesn't mean we don't launch immersive
-  // mode in Aura. This function is specifically called in case when we need
-  // to relaunch desktop launched chrome into immersive mode through 'relaunch'
-  // menu. In case of Aura, we will use delegate_execute to do the relaunch.
-  return false;
-}
-
 bool DisplayShouldKillMessageBox() {
   return chrome::ShowMessageBox(
              NULL, l10n_util::GetStringUTF16(IDS_PRODUCT_NAME),
              l10n_util::GetStringUTF16(IDS_BROWSER_HUNGBROWSER_MESSAGE),
              chrome::MESSAGE_BOX_TYPE_QUESTION) !=
          chrome::MESSAGE_BOX_RESULT_NO;
 }
 
 }  // namespace
 
@@ skipping 164 matching lines @@
   return window_.hwnd() != NULL;
 }
 
 void ProcessSingleton::Cleanup() {
 }
 
 void ProcessSingleton::OverrideShouldKillRemoteProcessCallbackForTesting(
     const ShouldKillRemoteProcessCallback& display_dialog_callback) {
   should_kill_remote_process_callback_ = display_dialog_callback;
 }