arc: enable Android tracing in verified-boot mode

content/browser/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("//gpu/vulkan/features.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
@@ skipping 1387 matching lines @@
     "streams/stream_handle_impl.h",
     "streams/stream_read_observer.h",
     "streams/stream_register_observer.h",
     "streams/stream_registry.cc",
     "streams/stream_registry.h",
     "streams/stream_url_request_job.cc",
     "streams/stream_url_request_job.h",
     "streams/stream_write_observer.h",
     "theme_helper_mac.h",
     "theme_helper_mac.mm",
-    "tracing/arc_tracing_agent.cc",
-    "tracing/arc_tracing_agent.h",
     "tracing/background_memory_tracing_observer.cc",
     "tracing/background_memory_tracing_observer.h",
     "tracing/background_tracing_config_impl.cc",
     "tracing/background_tracing_config_impl.h",
     "tracing/background_tracing_manager_impl.cc",
     "tracing/background_tracing_manager_impl.h",
     "tracing/background_tracing_rule.cc",
     "tracing/background_tracing_rule.h",
     "tracing/etw_tracing_agent_win.cc",
     "tracing/etw_tracing_agent_win.h",
@@ skipping 109 matching lines @@
       "//ui/vector_icons",
     ]
   }
   if ((use_udev && is_posix) || is_mac || is_win) {
     deps += [ "//tools/battor_agent:battor_agent_lib" ]
     sources += [
       "tracing/power_tracing_agent.cc",
       "tracing/power_tracing_agent.h",
     ]
   }
+  if (is_chromeos) {
+    sources += [
+      "tracing/arc_tracing_agent.cc",
+      "tracing/arc_tracing_agent.h",
+    ]
+  }
 
   if (enable_webrtc) {
     sources += [
       "renderer_host/media/peer_connection_tracker_host.cc",
       "renderer_host/media/peer_connection_tracker_host.h",
       "renderer_host/p2p/socket_dispatcher_host.cc",
       "renderer_host/p2p/socket_dispatcher_host.h",
       "renderer_host/p2p/socket_host.cc",
       "renderer_host/p2p/socket_host.h",
       "renderer_host/p2p/socket_host_tcp.cc",
@@ skipping 520 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }