tp: add importers build file and create common target

Change-Id: I4e036b8abcf72cff019d9d2a4f530b09453bc3e2
diff --git a/Android.bp b/Android.bp
index d985dfd..68c2708 100644
--- a/Android.bp
+++ b/Android.bp
@@ -6457,6 +6457,31 @@
   ],
 }
 
+// GN: //src/trace_processor/importers:common
+filegroup {
+  name: "perfetto_src_trace_processor_importers_common",
+  srcs: [
+    "src/trace_processor/importers/common/args_tracker.cc",
+    "src/trace_processor/importers/common/clock_tracker.cc",
+    "src/trace_processor/importers/common/event_tracker.cc",
+    "src/trace_processor/importers/common/global_args_tracker.cc",
+    "src/trace_processor/importers/common/process_tracker.cc",
+    "src/trace_processor/importers/common/slice_tracker.cc",
+    "src/trace_processor/importers/common/track_tracker.cc",
+  ],
+}
+
+// GN: //src/trace_processor/importers:unittests
+filegroup {
+  name: "perfetto_src_trace_processor_importers_unittests",
+  srcs: [
+    "src/trace_processor/importers/common/clock_tracker_unittest.cc",
+    "src/trace_processor/importers/common/event_tracker_unittest.cc",
+    "src/trace_processor/importers/common/process_tracker_unittest.cc",
+    "src/trace_processor/importers/common/slice_tracker_unittest.cc",
+  ],
+}
+
 // GN: //src/trace_processor:lib
 filegroup {
   name: "perfetto_src_trace_processor_lib",
@@ -6557,13 +6582,6 @@
   srcs: [
     "src/trace_processor/default_modules.cc",
     "src/trace_processor/forwarding_trace_parser.cc",
-    "src/trace_processor/importers/common/args_tracker.cc",
-    "src/trace_processor/importers/common/clock_tracker.cc",
-    "src/trace_processor/importers/common/event_tracker.cc",
-    "src/trace_processor/importers/common/global_args_tracker.cc",
-    "src/trace_processor/importers/common/process_tracker.cc",
-    "src/trace_processor/importers/common/slice_tracker.cc",
-    "src/trace_processor/importers/common/track_tracker.cc",
     "src/trace_processor/importers/ftrace/ftrace_module.cc",
     "src/trace_processor/importers/gzip/gzip_utils.cc",
     "src/trace_processor/importers/json/json_utils.cc",
@@ -6644,10 +6662,7 @@
   srcs: [
     "src/trace_processor/dynamic/experimental_counter_dur_generator_unittest.cc",
     "src/trace_processor/forwarding_trace_parser_unittest.cc",
-    "src/trace_processor/importers/common/clock_tracker_unittest.cc",
-    "src/trace_processor/importers/common/event_tracker_unittest.cc",
-    "src/trace_processor/importers/common/process_tracker_unittest.cc",
-    "src/trace_processor/importers/common/slice_tracker_unittest.cc",
+    "src/trace_processor/importers/ftrace/sched_event_tracker_unittest.cc",
     "src/trace_processor/importers/fuchsia/fuchsia_trace_utils_unittest.cc",
     "src/trace_processor/importers/proto/args_table_utils_unittest.cc",
     "src/trace_processor/importers/proto/heap_graph_tracker_unittest.cc",
@@ -7555,6 +7570,8 @@
     ":perfetto_src_trace_processor_db_unittests",
     ":perfetto_src_trace_processor_export_json",
     ":perfetto_src_trace_processor_ftrace_descriptors",
+    ":perfetto_src_trace_processor_importers_common",
+    ":perfetto_src_trace_processor_importers_unittests",
     ":perfetto_src_trace_processor_lib",
     ":perfetto_src_trace_processor_metrics_lib",
     ":perfetto_src_trace_processor_metrics_unittests",
@@ -7806,6 +7823,7 @@
     ":perfetto_src_trace_processor_db_lib",
     ":perfetto_src_trace_processor_export_json",
     ":perfetto_src_trace_processor_ftrace_descriptors",
+    ":perfetto_src_trace_processor_importers_common",
     ":perfetto_src_trace_processor_lib",
     ":perfetto_src_trace_processor_metrics_lib",
     ":perfetto_src_trace_processor_sqlite_sqlite",
@@ -7922,6 +7940,7 @@
     ":perfetto_src_trace_processor_db_lib",
     ":perfetto_src_trace_processor_export_json",
     ":perfetto_src_trace_processor_ftrace_descriptors",
+    ":perfetto_src_trace_processor_importers_common",
     ":perfetto_src_trace_processor_lib",
     ":perfetto_src_trace_processor_metrics_lib",
     ":perfetto_src_trace_processor_sqlite_sqlite",