tracing: restructure to the components/tracing folder

components/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//tools/grit/repack.gni")
 
 if (is_android) {
@@ skipping 367 matching lines @@
   test("components_browsertests") {
     defines = [ "HAS_OUT_OF_PROC_TEST_RUNNER" ]
 
     sources = [
       "autofill/content/browser/risk/fingerprint_browsertest.cc",
       "autofill/content/renderer/password_form_conversion_utils_browsertest.cc",
       "dom_distiller/content/browser/distillable_page_utils_browsertest.cc",
       "dom_distiller/content/browser/distiller_page_web_contents_browsertest.cc",
       "dom_distiller/content/browser/test/dom_distiller_js_browsertest.cc",
       "password_manager/content/renderer/credential_manager_client_browsertest.cc",
-      "tracing/child_trace_message_filter_browsertest.cc",
+      "tracing/child/child_trace_message_filter_browsertest.cc",
     ]
 
     data = [
       "$root_out_dir/components_tests_resources.pak",
       "$root_out_dir/content_shell.pak",
       "test/data/",
       "dom_distiller/core/javascript/",
       "//third_party/dom_distiller_js/dist/test/data/",
     ]
 
@@ skipping 84 matching lines @@
       "//base/test:test_support_perf",
       "//components/scheduler",
       "//components/visitedlink/browser",
       "//content/test:test_support",
       "//testing/gtest",
       "//testing/perf",
       "//url",
     ]
   }
 }