cros: Instant extended support for immersive fullscreen

chrome/browser/ui/views/frame/immersive_mode_controller_factory.cc

Index: chrome/browser/ui/views/frame/immersive_mode_controller_factory.cc
diff --git a/chrome/browser/ui/views/frame/immersive_mode_controller_factory.cc b/chrome/browser/ui/views/frame/immersive_mode_controller_factory.cc
index 73b4b704b420eaac2336f8bfa7eaa42cf10a3f4e..ca37343b3188e8302f5a3e9c156faeeb8ff294c8 100644
--- a/chrome/browser/ui/views/frame/immersive_mode_controller_factory.cc
+++ b/chrome/browser/ui/views/frame/immersive_mode_controller_factory.cc
@@ -25,6 +25,16 @@ bool UseImmersiveFullscreen() {
   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();