perfetto: more error handling for opening/reading traces and query files
perfetto: more error handling for opening/reading traces and query files

Bug: 120488286
Change-Id: I5beb100f605dce208147edbf092baecd78a55bda
google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto