wayland: do not include message_pump_x.h for use_wayland

BUG=102903
TEST=compile

Change-Id: I5bea343f65b9db676b0f07e1b41bb59cf4f7cf38

R=oshima@chromium.org,saintlou@chromium.org,dnicoara@chromium.org

Review URL: http://codereview.chromium.org/8596010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110782 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/system_key_event_listener.cc

@@ -23,8 +23,12 @@
 #include "ui/base/x/x11_util.h"
 
 #if defined(TOUCH_UI) || !defined(TOOLKIT_USES_GTK)
+#if defined(USE_WAYLAND)
+#include "base/message_pump_wayland.h"
+#else
 #include "base/message_pump_x.h"
 #endif
+#endif
 
 namespace chromeos {