Service: Add QueryCapabilities method

Test: Manual
Bug: 150960749
Bug: 141917389
Change-Id: I931c0244bad2c2ae03849e9240401ee8710707bb
diff --git a/BUILD b/BUILD
index 042d95a..602e0dc 100644
--- a/BUILD
+++ b/BUILD
@@ -458,6 +458,7 @@
         "include/perfetto/tracing/core/data_source_config.h",
         "include/perfetto/tracing/core/data_source_descriptor.h",
         "include/perfetto/tracing/core/trace_config.h",
+        "include/perfetto/tracing/core/tracing_service_capabilities.h",
         "include/perfetto/tracing/core/tracing_service_state.h",
     ],
 )
@@ -1402,6 +1403,7 @@
         "protos/perfetto/common/observable_events.proto",
         "protos/perfetto/common/sys_stats_counters.proto",
         "protos/perfetto/common/trace_stats.proto",
+        "protos/perfetto/common/tracing_service_capabilities.proto",
         "protos/perfetto/common/tracing_service_state.proto",
         "protos/perfetto/common/track_event_descriptor.proto",
     ],