Remove X11/Xlib.h include from selection_requestor.h

ui/base/clipboard/clipboard_aurax11.cc

Index: ui/base/clipboard/clipboard_aurax11.cc
diff --git a/ui/base/clipboard/clipboard_aurax11.cc b/ui/base/clipboard/clipboard_aurax11.cc
index 45ee987b35d65a4ba5947d7f2d7ed44e6b175b05..1626f34e372f002ec7d3f25a04e24ca390c842a5 100644
--- a/ui/base/clipboard/clipboard_aurax11.cc
+++ b/ui/base/clipboard/clipboard_aurax11.cc
@@ -546,11 +546,11 @@ uint32_t Clipboard::AuraX11Details::DispatchEvent(const PlatformEvent& xev) {
     case SelectionNotify: {
       ::Atom selection = xev->xselection.selection;
       if (selection == XA_PRIMARY)
-        primary_requestor_.OnSelectionNotify(xev->xselection);
+        primary_requestor_.OnSelectionNotify(*xev);
       else if (selection == GetCopyPasteSelection())
-        clipboard_requestor_.OnSelectionNotify(xev->xselection);
+        clipboard_requestor_.OnSelectionNotify(*xev);
       else if (selection == atom_cache_.GetAtom(kClipboardManager))
-        clipboard_manager_requestor_.OnSelectionNotify(xev->xselection);
+        clipboard_manager_requestor_.OnSelectionNotify(*xev);
       break;
     }
     case SelectionClear: {