Update from https://crrev.com/315085

base/base.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.
 
 {
   'target_defaults': {
     'variables': {
       'base_target': 0,
       'base_i18n_target': 0,
     },
@@ skipping 155 matching lines @@
           'debug/proc_maps_linux.h',
           'debug/profiler.cc',
           'debug/profiler.h',
           'debug/stack_trace.cc',
           'debug/stack_trace.h',
           'debug/stack_trace_android.cc',
           'debug/stack_trace_posix.cc',
           'debug/stack_trace_win.cc',
           'debug/task_annotator.cc',
           'debug/task_annotator.h',
-          'debug/trace_event.h',
-          'debug/trace_event_argument.h',
-          'debug/trace_event_impl.h',
-          'debug/trace_event_synthetic_delay.h',
-          'debug/trace_event_win.h',
           'deferred_sequenced_task_runner.cc',
           'deferred_sequenced_task_runner.h',
           'environment.cc',
           'environment.h',
           'file_descriptor_posix.h',
           'file_version_info.h',
           'file_version_info_mac.h',
           'file_version_info_mac.mm',
           'file_version_info_win.cc',
           'file_version_info_win.h',
@@ skipping 155 matching lines @@
           'memory/linked_ptr.h',
           'memory/manual_constructor.h',
           'memory/memory_pressure_listener.cc',
           'memory/memory_pressure_listener.h',
           'memory/raw_scoped_refptr_mismatch_checker.h',
           'memory/ref_counted.cc',
           'memory/ref_counted.h',
           'memory/ref_counted_delete_on_message_loop.h',
           'memory/ref_counted_memory.cc',
           'memory/ref_counted_memory.h',
-          'memory/scoped_open_process.h',
           'memory/scoped_policy.h',
           'memory/scoped_ptr.h',
           'memory/scoped_vector.h',
           'memory/shared_memory.h',
           'memory/shared_memory_android.cc',
           'memory/shared_memory_nacl.cc',
           'memory/shared_memory_posix.cc',
           'memory/shared_memory_win.cc',
           'memory/singleton.cc',
           'memory/singleton.h',
@@ skipping 679 matching lines @@
           'i18n/time_formatting.h',
           'i18n/timezone.cc',
           'i18n/timezone.h',
           'i18n/utf8_validator_tables.cc',
           'i18n/utf8_validator_tables.h',
         ],
       }]
     ],
   },
 }