tracing: split out the CategoryRegistry from the TraceLog

base/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # HOW TO WRITE CONDITIONALS IN THIS FILE
 # ======================================
 #
 # In many other places, one would write a conditional that expresses all the
 # cases when a source file is used or unused, and then either add or subtract
 # it from the sources list in that case
@@ skipping 878 matching lines @@
     "timer/hi_res_timer_manager_posix.cc",
     "timer/hi_res_timer_manager_win.cc",
     "timer/mock_timer.cc",
     "timer/mock_timer.h",
     "timer/timer.cc",
     "timer/timer.h",
     "trace_event/auto_open_close_event.cc",
     "trace_event/auto_open_close_event.h",
     "trace_event/blame_context.cc",
     "trace_event/blame_context.h",
+    "trace_event/category_registry.cc",
+    "trace_event/category_registry.h",
     "trace_event/common/trace_event_common.h",
     "trace_event/heap_profiler.h",
     "trace_event/heap_profiler_allocation_context.cc",
     "trace_event/heap_profiler_allocation_context.h",
     "trace_event/heap_profiler_allocation_context_tracker.cc",
     "trace_event/heap_profiler_allocation_context_tracker.h",
     "trace_event/heap_profiler_allocation_register.cc",
     "trace_event/heap_profiler_allocation_register.h",
     "trace_event/heap_profiler_allocation_register_posix.cc",
     "trace_event/heap_profiler_allocation_register_win.cc",
@@ skipping 21 matching lines @@
     "trace_event/memory_infra_background_whitelist.cc",
     "trace_event/memory_infra_background_whitelist.h",
     "trace_event/process_memory_dump.cc",
     "trace_event/process_memory_dump.h",
     "trace_event/process_memory_maps.cc",
     "trace_event/process_memory_maps.h",
     "trace_event/process_memory_totals.cc",
     "trace_event/process_memory_totals.h",
     "trace_event/trace_buffer.cc",
     "trace_event/trace_buffer.h",
+    "trace_event/trace_category.h",
     "trace_event/trace_config.cc",
     "trace_event/trace_config.h",
     "trace_event/trace_event.h",
     "trace_event/trace_event_android.cc",
     "trace_event/trace_event_argument.cc",
     "trace_event/trace_event_argument.h",
     "trace_event/trace_event_etw_export_win.cc",
     "trace_event/trace_event_etw_export_win.h",
     "trace_event/trace_event_impl.cc",
     "trace_event/trace_event_impl.h",
@@ skipping 1506 matching lines @@
     testonly = true
     deps = [
       ":base_java",
     ]
     java_files = [
       "test/android/java/src/org/chromium/base/ContentUriTestUtils.java",
       "test/android/java/src/org/chromium/base/TestSystemMessageHandler.java",
     ]
   }
 }