Allow --aura-host-window-use-fullscreen to be used without chromeos=1.

chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.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/ui/views/ash/chrome_browser_main_extra_parts_ash.h"
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/ash_switches.h"
 #include "ash/high_contrast/high_contrast_controller.h"
 #include "ash/shell.h"
@@ skipping 24 matching lines @@
 #include "chrome/browser/ui/views/ash/volume_controller_chromeos.h"
 #endif
 
 ChromeBrowserMainExtraPartsAsh::ChromeBrowserMainExtraPartsAsh() {
 }
 
 ChromeBrowserMainExtraPartsAsh::~ChromeBrowserMainExtraPartsAsh() {
 }
 
 void ChromeBrowserMainExtraPartsAsh::PreProfileInit() {
+  bool use_fullscreen = CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kAuraHostWindowUseFullscreen);
+
 #if defined(OS_CHROMEOS)
-  if (base::chromeos::IsRunningOnChromeOS() ||
-      CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kAuraHostWindowUseFullscreen)) {
+  if (base::chromeos::IsRunningOnChromeOS())
+    use_fullscreen = true;
+#endif
+
+  if (use_fullscreen) {
     aura::MonitorManager::set_use_fullscreen_host_window(true);
     aura::RootWindow::set_hide_host_cursor(true);

[Daniel Erat, 2012/06/08 13:25:04]

I think that this should probably be within the OS_CHROMEOS block as well,
assuming that it still does the same thing that it used to.  From root_window.h:

  // If set before the RootWindow is created, the cursor will be drawn within
  // the Aura root window but hidden outside of it, and it'll remain hidden
  // after the Aura window is closed.
  static bool hide_host_cursor_;

+#if defined(OS_CHROMEOS)
     // Hide the mouse cursor completely at boot.
     if (!chromeos::UserManager::Get()->IsUserLoggedIn())
       ash::Shell::set_initially_hide_cursor(true);
+#endif
   }
-#endif
 
   // Its easier to mark all windows as persisting and exclude the ones we care
   // about (browser windows), rather than explicitly excluding certain windows.
   ash::SetDefaultPersistsAcrossAllWorkspaces(true);
 
   // Shell takes ownership of ChromeShellDelegate.
   ash::Shell* shell = ash::Shell::CreateInstance(new ChromeShellDelegate);
   shell->key_rewriter_filter()->SetKeyRewriterDelegate(
       scoped_ptr<ash::KeyRewriterDelegate>(new KeyRewriter).Pass());
   shell->accelerator_controller()->SetScreenshotDelegate(
@@ skipping 29 matching lines @@
   ash::Shell::DeleteInstance();
 }
 
 namespace browser {
 
 void AddAshToolkitExtraParts(ChromeBrowserMainParts* main_parts) {
   main_parts->AddParts(new ChromeBrowserMainExtraPartsAsh());
 }
 
 }  // namespace browser