Fix namespace for src/ui/display/.

ui/display/manager/chromeos/x11/display_snapshot_x11.cc

Index: ui/display/manager/chromeos/x11/display_snapshot_x11.cc
diff --git a/ui/display/manager/chromeos/x11/display_snapshot_x11.cc b/ui/display/manager/chromeos/x11/display_snapshot_x11.cc
index 938d3baa9b7318ecf9e26c6a5335e2f13031997f..c58593c3bd7069368ce49a29032a52ab5d14d9bc 100644
--- a/ui/display/manager/chromeos/x11/display_snapshot_x11.cc
+++ b/ui/display/manager/chromeos/x11/display_snapshot_x11.cc
@@ -7,7 +7,7 @@
 #include "base/strings/stringprintf.h"
 #include "ui/display/manager/chromeos/x11/display_mode_x11.h"
 
-namespace ui {
+namespace display {
 
 DisplaySnapshotX11::DisplaySnapshotX11(
     int64_t display_id,
@@ -58,4 +58,4 @@ std::string DisplaySnapshotX11::ToString() const {
       physical_size_.height());
 }
 
-}  // namespace ui
+}  // namespace display