linux_aura: Bail early if we can't connect to the X11 server.

ui/gfx/x/x11_switches.cc

Index: ui/gfx/x/x11_switches.cc
diff --git a/ui/display/display_switches.cc b/ui/gfx/x/x11_switches.cc
similarity index 53%
copy from ui/display/display_switches.cc
copy to ui/gfx/x/x11_switches.cc
index 7d32b5b6b99afa47980be4901f59c6de243d792f..bda0ad3c5572800306fafa4fb9073db46393074b 100644
--- a/ui/display/display_switches.cc
+++ b/ui/gfx/x/x11_switches.cc
@@ -2,15 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ui/display/display_switches.h"
+#include "ui/gfx/x/x11_switches.h"
 
-namespace ui {
 namespace switches {
 
-#if defined(OS_CHROMEOS)
-const char kDisableDisplayColorCalibration[] =
-    "disable-display-color-calibration";
+#if !defined(OS_CHROMEOS)
+// Which X11 display to connect to. Emulates the GTK+ "--display=" command line
+// argument.
+const char kX11Display[] = "display";
 #endif
 
 }  // namespace switches
-}  // namespace ui