trace_processor: fix process tracking for end events am: da392df822 am: 1bba595bbc am: 562bf3304c am: ca038a9138
trace_processor: fix process tracking for end events am: da392df822 am: 1bba595bbc am: 562bf3304c
am: ca038a9138

Change-Id: I55015b862bbe430e45faeccad11a80708194a30f

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