Fix GN bootstrap

TBR=brettw

Bug: none
Change-Id: Iec1459d705c8d1b06c30891f0f1ddfe76d4f9074
Reviewed-on: https://chromium-review.googlesource.com/667107Reviewed-by: Paweł Hajdan Jr. <phajdan.jr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#502195}

tools/gn/bootstrap/bootstrap.py

@@ -481,8 +481,6 @@ def write_gn_ninja(path, root_gen_dir, options):
       'base/process/process_handle.cc',
       'base/process/process_iterator.cc',
       'base/process/process_metrics.cc',
-      'base/profiler/scoped_profile.cc',
-      'base/profiler/scoped_tracker.cc',
       'base/rand_util.cc',
       'base/run_loop.cc',
       'base/sequence_token.cc',
@@ -579,7 +577,6 @@ def write_gn_ninja(path, root_gen_dir, options):
       'base/trace_event/trace_log_constants.cc',
       'base/trace_event/tracing_agent.cc',
       'base/tracked_objects.cc',
-      'base/tracking_info.cc',
       'base/unguessable_token.cc',
       'base/value_iterators.cc',
       'base/values.cc',