include-what-you-use: Fix some tracing-related includes

content/browser/tracing/tracing_controller_impl.cc

 // Copyright (c) 2013 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.
 #include "content/browser/tracing/tracing_controller_impl.h"
 
 #include "base/bind.h"
 #include "base/cpu.h"
 #include "base/files/file_util.h"
 #include "base/guid.h"
 #include "base/json/string_escape.h"
 #include "base/macros.h"
+#include "base/memory/ref_counted_memory.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/sys_info.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "components/tracing/process_metrics_memory_dump_provider.h"
 #include "content/browser/tracing/file_tracing_provider_impl.h"
 #include "content/browser/tracing/trace_message_filter.h"
 #include "content/browser/tracing/tracing_ui.h"
@@ skipping 980 matching lines @@
   const bool global_success = failed_memory_dump_count_ == 0;
   if (!pending_memory_dump_callback_.is_null()) {
     pending_memory_dump_callback_.Run(pending_memory_dump_guid_,
                                       global_success);
     pending_memory_dump_callback_.Reset();
   }
   pending_memory_dump_guid_ = 0;
 }
 
 }  // namespace content