Work around multi-key down issue on Windows.
Work around multi-key down issue on Windows.

google/agi,pmuetschard/gapid,google/gapid,google/gapid,pmuetschard/gapid,google/agi,google/gapid,google/gapid,pmuetschard/gapid,pmuetschard/gapid,google/agi,pmuetschard/gapid,google/agi,google/agi,google/gapid,google/agi,google/agi,pmuetschard/gapid,google/gapid,google/gapid,google/agi,google/gapid,pmuetschard/gapid,pmuetschard/gapid