Keep the mouse cursor within desktop

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index 194c4e528739bdc61b63442956bb356a40a99977..e033a5a6418a8103d445cb1c275df417a29f489a 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -91,10 +91,6 @@
 #include "ash/accelerators/nested_dispatcher_controller.h"
 #endif
 
-#if defined(USE_X11)
-#include "ui/aura/monitor_change_observer_x11.h"
-#endif
-
 namespace ash {
 
 namespace {
@@ -579,9 +575,6 @@ Shell* Shell::CreateInstance(ShellDelegate* delegate) {
   CHECK(!instance_);
   aura::Env::GetInstance()->SetMonitorManager(
       new internal::MultiMonitorManager());
-#if defined(USE_X11)
-  aura::Env::GetInstance()->monitor_change_observer()->NotifyMonitorChange();
-#endif
   instance_ = new Shell(delegate);
   instance_->Init();
   return instance_;