trace_processor: Introduce Desctructible base class for trackers

This is a preparation step before moving some modules from storage_minimal
to storage_full.

Bug: 141459049
Change-Id: I62b88fa617d59c8d2aaa78e7cdeec59bd2245533
diff --git a/Android.bp b/Android.bp
index 7a622db..cddb354 100644
--- a/Android.bp
+++ b/Android.bp
@@ -5754,6 +5754,7 @@
     "src/trace_processor/args_tracker.cc",
     "src/trace_processor/binder_tracker.cc",
     "src/trace_processor/clock_tracker.cc",
+    "src/trace_processor/destructible.cc",
     "src/trace_processor/event_tracker.cc",
     "src/trace_processor/forwarding_trace_parser.cc",
     "src/trace_processor/ftrace_utils.cc",