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

media/base/user_input_monitor_linux.cc

Index: media/base/user_input_monitor_linux.cc
diff --git a/media/base/user_input_monitor_linux.cc b/media/base/user_input_monitor_linux.cc
index 4b40c8310beb7de1fdbeb61f5fa705231e794157..b92cdda0325f21534ba13e9f820f12e6bd876680 100644
--- a/media/base/user_input_monitor_linux.cc
+++ b/media/base/user_input_monitor_linux.cc
@@ -22,6 +22,7 @@
 #include "media/base/keyboard_event_counter.h"
 #include "third_party/skia/include/core/SkPoint.h"
 #include "ui/events/keycodes/keyboard_code_conversion_x.h"
+#include "ui/gfx/x/x11_types.h"
 
 // These includes need to be later than dictated by the style guide due to
 // Xlib header pollution, specifically the min, max, and Status macros.
@@ -147,10 +148,10 @@ void UserInputMonitorLinuxCore::StartMonitor(EventType type) {
   // them with something like the following:
   //   XOpenDisplay(DisplayString(display));
   if (!x_control_display_)
-    x_control_display_ = XOpenDisplay(NULL);
+    x_control_display_ = gfx::OpenNewXDisplay();
 
   if (!x_record_display_)
-    x_record_display_ = XOpenDisplay(NULL);
+    x_record_display_ = gfx::OpenNewXDisplay();
 
   if (!x_control_display_ || !x_record_display_) {
     LOG(ERROR) << "Couldn't open X display";