Telemetry / Devtools TraceHandler: exposes tracing via dev tools.

content/content_browser.gypi

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'conditions': [
       ['chromeos==1', {
         'use_libgps%': 1,
       }, { # chromeos==0
@@ skipping 267 matching lines @@
     'browser/cert_store_impl.cc',
     'browser/cert_store_impl.h',
     'browser/child_process_launcher.cc',
     'browser/child_process_launcher.h',
     'browser/child_process_security_policy_impl.cc',
     'browser/child_process_security_policy_impl.h',
     'browser/cross_site_request_manager.cc',
     'browser/cross_site_request_manager.h',
     'browser/debugger/devtools_agent_host.cc',
     'browser/debugger/devtools_agent_host.h',
+    'browser/debugger/devtools_browser_target.cc',
+    'browser/debugger/devtools_browser_target.h',
     'browser/debugger/devtools_frontend_host.cc',
     'browser/debugger/devtools_frontend_host.h',
     'browser/debugger/devtools_http_handler_impl.cc',
     'browser/debugger/devtools_http_handler_impl.h',
     'browser/debugger/devtools_manager_impl.cc',
     'browser/debugger/devtools_manager_impl.h',
     'browser/debugger/devtools_netlog_observer.cc',
     'browser/debugger/devtools_netlog_observer.h',
+    'browser/debugger/devtools_tracing_handler.h',
+    'browser/debugger/devtools_tracing_handler.cc',
     'browser/debugger/render_view_devtools_agent_host.cc',
     'browser/debugger/render_view_devtools_agent_host.h',
     'browser/debugger/worker_devtools_manager.cc',
     'browser/debugger/worker_devtools_manager.h',
     'browser/debugger/worker_devtools_message_filter.cc',
     'browser/debugger/worker_devtools_message_filter.h',
     'browser/device_monitor_linux.cc',
     'browser/device_monitor_linux.h',
     'browser/device_monitor_mac.h',
     'browser/device_monitor_mac.mm',
@@ skipping 861 matching lines @@
       # the USE_LIBGPS setting propagates to the "real" dependent target,
       # we use all_dependent_settings here.
       'all_dependent_settings': {
         'defines': [
           'USE_LIBGPS',
         ],
       },
     }],
   ],
 }