cros: Turn immersive fullscreen on by default

chrome/browser/ui/views/frame/immersive_mode_controller_factory.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/ui/views/frame/immersive_mode_controller.h"
 
 #include "chrome/browser/ui/views/frame/immersive_mode_controller_stub.h"
 
 #if defined(OS_CHROMEOS)
 #include "ash/ash_switches.h"
 #include "base/command_line.h"
 #include "chrome/browser/ui/views/frame/immersive_mode_controller_ash.h"
 #include "chrome/common/chrome_switches.h"
 #endif  // defined(OS_CHROMEOS)
 
 namespace chrome {
 
 bool UseImmersiveFullscreen() {
 #if defined(OS_CHROMEOS)
+  CommandLine* command = CommandLine::ForCurrentProcess();
   // Kiosk mode needs the whole screen.
-  CommandLine* command_line = CommandLine::ForCurrentProcess();
-  return !command_line->HasSwitch(switches::kKioskMode) &&
-      command_line->HasSwitch(ash::switches::kAshImmersiveFullscreen);
+  if (command->HasSwitch(switches::kKioskMode))
+    return false;
+  // Immersive fullscreen is on by default.
+  return !command->HasSwitch(ash::switches::kAshDisableImmersiveFullscreen);
 #endif
   return false;
 }
 
 // Implemented here so all the code dealing with flags lives in one place.
 void EnableImmersiveFullscreenForTest() {
-#if defined(OS_CHROMEOS)
-  CommandLine* command_line = CommandLine::ForCurrentProcess();
-  command_line->AppendSwitch(ash::switches::kAshImmersiveFullscreen);
-#endif
+  // Immersive fullscreen is on by default. If we turn it off, this function
+  // will need to add kAshEnableImmersiveFullscreen to the command line.
 }
 
 ImmersiveModeController* CreateImmersiveModeController() {
 #if defined(OS_CHROMEOS)
   return new ImmersiveModeControllerAsh();
 #else
   return new ImmersiveModeControllerStub();
 #endif
 }
 
 }  // namespace chrome