cros: Instant extended support for immersive fullscreen

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)
   // Kiosk mode needs the whole screen.
   CommandLine* command_line = CommandLine::ForCurrentProcess();
   return !command_line->HasSwitch(switches::kKioskMode) &&
       command_line->HasSwitch(ash::switches::kAshImmersiveFullscreen);
 #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);
+#else
+  NOTREACHED();
+#endif
+}
+
 ImmersiveModeController* CreateImmersiveModeController() {
 #if defined(OS_CHROMEOS)
   return new ImmersiveModeControllerAsh();
 #else
   return new ImmersiveModeControllerStub();
 #endif
 }
 
 }  // namespace chrome