Update from https://crrev.com/329939

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.
 
 {
   'includes': [
     'trace_event/trace_event.gypi',
   ],
   'target_defaults': {
     'variables': {
@@ skipping 191 matching lines @@
           'files/file_path_watcher_fsevents.h',
           'files/file_path_watcher_kqueue.cc',
           'files/file_path_watcher_kqueue.h',
           'files/file_path_watcher_linux.cc',
           'files/file_path_watcher_mac.cc',
           'files/file_path_watcher_stub.cc',
           'files/file_path_watcher_win.cc',
           'files/file_posix.cc',
           'files/file_proxy.cc',
           'files/file_proxy.h',
+          'files/file_tracing.cc',
+          'files/file_tracing.h',
           'files/file_util.cc',
           'files/file_util.h',
           'files/file_util_android.cc',
           'files/file_util_linux.cc',
           'files/file_util_mac.mm',
           'files/file_util_posix.cc',
           'files/file_util_proxy.cc',
           'files/file_util_proxy.h',
           'files/file_util_win.cc',
           'files/file_win.cc',
@@ skipping 49 matching lines @@
           'logging.h',
           'logging_win.cc',
           'logging_win.h',
           'mac/authorization_util.h',
           'mac/authorization_util.mm',
           'mac/bind_objc_block.h',
           'mac/bundle_locations.h',
           'mac/bundle_locations.mm',
           'mac/close_nocancel.cc',
           'mac/cocoa_protocols.h',
+          'mac/dispatch_source_mach.cc',
+          'mac/dispatch_source_mach.h',
           'mac/foundation_util.h',
           'mac/foundation_util.mm',
           'mac/launch_services_util.cc',
           'mac/launch_services_util.h',
           'mac/launchd.cc',
           'mac/launchd.h',
           'mac/libdispatch_task_runner.cc',
           'mac/libdispatch_task_runner.h',
           'mac/mac_logging.cc',
           'mac/mac_logging.h',
@@ skipping 407 matching lines @@
           'win/event_trace_controller.cc',
           'win/event_trace_controller.h',
           'win/event_trace_provider.cc',
           'win/event_trace_provider.h',
           'win/i18n.cc',
           'win/i18n.h',
           'win/iat_patch_function.cc',
           'win/iat_patch_function.h',
           'win/iunknown_impl.cc',
           'win/iunknown_impl.h',
+          'win/memory_pressure_monitor.cc',
+          'win/memory_pressure_monitor.h',
           'win/message_window.cc',
           'win/message_window.h',
           'win/metro.cc',
           'win/metro.h',
           'win/object_watcher.cc',
           'win/object_watcher.h',
           'win/registry.cc',
           'win/registry.h',
           'win/resource_util.cc',
           'win/resource_util.h',
@@ skipping 302 matching lines @@
           'i18n/time_formatting.h',
           'i18n/timezone.cc',
           'i18n/timezone.h',
           'i18n/utf8_validator_tables.cc',
           'i18n/utf8_validator_tables.h',
         ],
       }]
     ],
   },
 }