Make GTK and Aura parts orthogonal to OS parts

chrome/browser/chrome_browser_main_x11.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 "chrome/browser/chrome_browser_main.h"
 
 #include "base/debug/debugger.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/metrics/metrics_service.h"
 #include "content/browser/browser_thread.h"
@@ skipping 68 matching lines @@
 void RecordBrowserStartupTime() {
   // Not implemented on X11 for now.
 }
 
 // From browser_main_win.h, stubs until we figure out the right thing...
 
 int DoUninstallTasks(bool chrome_still_running) {
   return content::RESULT_CODE_NORMAL_EXIT;
 }
 
-int HandleIconsCommands(const CommandLine &parsed_command_line) {
-  return 0;
-}
-
-bool CheckMachineLevelInstall() {
-  return false;
-}
-
-void PrepareRestartOnCrashEnviroment(const CommandLine &parsed_command_line) {
-}
-
 void SetBrowserX11ErrorHandlers() {
   // Set up error handlers to make sure profile gets written if X server
   // goes away.
   ui::SetX11ErrorHandlers(BrowserX11ErrorHandler, BrowserX11IOErrorHandler);
 }