trace_processor: don't add swapper slices to trace storage am: 0ff6498e41
trace_processor: don't add swapper slices to trace storage
am: 0ff6498e41

Change-Id: Ie6570af53ccdf683d5774973d4b89ce046365370

google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto