Move chromeos::EventRewriter to //ui/chromeos/events

ash/sticky_keys/sticky_keys_overlay_unittest.cc

Index: ash/sticky_keys/sticky_keys_overlay_unittest.cc
diff --git a/ash/sticky_keys/sticky_keys_overlay_unittest.cc b/ash/sticky_keys/sticky_keys_overlay_unittest.cc
index c6e2f5bccdcb3a555b9ed5816439fb71fd7b1151..0fa3e959285bb79f20c64fad9e228f7c89f7c447 100644
--- a/ash/sticky_keys/sticky_keys_overlay_unittest.cc
+++ b/ash/sticky_keys/sticky_keys_overlay_unittest.cc
@@ -84,7 +84,8 @@ TEST_F(StickyKeysOverlayTest, OverlayNotDestroyedAfterDisplayRemoved) {
             overlay.GetModifierKeyState(ui::EF_SHIFT_DOWN));
 }
 
-// Additional sticky key overlay tests that depend on chromeos::EventRewriter
-// are now in chrome/browser/chromeos/events/event_rewriter_unittest.cc .
+// Additional sticky key overlay tests that depend on
+// ui::chromeos::EventRewriter are now in
+// ui/chromeos/events/event_rewriter_unittest.cc .
 
 }  // namespace ash