Crbug: Made SyncManager generic based on specified timestamp property.
Crbug: Made SyncManager generic based on specified timestamp property.

osric-the-knight/foam,foam-framework/foam,foam-framework/foam,osric-the-knight/foam,jlhughes/foam,jlhughes/foam,jacksonic/foam,mdittmer/foam,mdittmer/foam,osric-the-knight/foam,shepheb/foam,foam-framework/foam,mdittmer/foam,jlhughes/foam,jacksonic/foam,shepheb/foam,shepheb/foam,jacksonic/foam,foam-framework/foam,osric-the-knight/foam,mdittmer/foam,foam-framework/foam,jlhughes/foam,jacksonic/foam