Revert 180055: Very likely caused http://crbug.com/173885

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.
 
 {
   'dependencies': [
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
@@ skipping 835 matching lines @@
     'browser/system_message_window_win.cc',
     'browser/system_message_window_win.h',
     'browser/tcmalloc_internals_request_job.cc',
     'browser/tcmalloc_internals_request_job.h',
     'browser/tracing/trace_controller_impl.cc',
     'browser/tracing/trace_controller_impl.h',
     'browser/tracing/trace_message_filter.cc',
     'browser/tracing/trace_message_filter.h',
     'browser/tracing/trace_subscriber_stdio.cc',
     'browser/tracing/trace_subscriber_stdio.h',
-    'browser/tracing/tracing_ui.cc',
-    'browser/tracing/tracing_ui.h',
     'browser/udev_linux.cc',
     'browser/udev_linux.h',
     'browser/user_metrics.cc',
     'browser/utility_process_host_impl.cc',
     'browser/utility_process_host_impl.h',
     'browser/web_contents/debug_urls.cc',
     'browser/web_contents/debug_urls.h',
     'browser/web_contents/drag_utils_gtk.cc',
     'browser/web_contents/drag_utils_gtk.h',
     'browser/web_contents/interstitial_page_impl.cc',
@@ skipping 225 matching lines @@
       'link_settings': {
         'libraries': [
           '-ljnigraphics',
         ],
       },
       'sources!': [
         'browser/geolocation/network_location_provider.cc',
         'browser/geolocation/network_location_provider.h',
         'browser/geolocation/network_location_request.cc',
         'browser/geolocation/network_location_request.h',
-        'browser/tracing/tracing_ui.cc',
-        'browser/tracing/tracing_ui.h',
       ],
     }, { # OS!="android"
       'dependencies': [
         '../third_party/flac/flac.gyp:libflac',
         '../third_party/speex/speex.gyp:libspeex',
       ],
     }],
     ['OS=="mac"', {
       'sources': [
         # Build necessary Mozilla sources
@@ skipping 107 matching lines @@
         ['exclude', '^browser/speech/'],
       ],
     }],
     ['linux_use_libgps==1', {
       'dependencies': [
         '../build/linux/system.gyp:libgps',
       ],
     }],
   ],
 }