tracing: restructure to the components/tracing folder

components/tracing/child_trace_message_filter.h

Index: components/tracing/child_trace_message_filter.h
diff --git a/components/tracing/child_trace_message_filter.h b/components/tracing/child_trace_message_filter.h
deleted file mode 100644
index 33d210aad7e66c5eb37e343bb34ede839eadcbcc..0000000000000000000000000000000000000000
--- a/components/tracing/child_trace_message_filter.h
+++ /dev/null
@@ -1,103 +0,0 @@
-// 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.
-
-#ifndef COMPONENTS_TRACING_CHILD_TRACE_MESSAGE_FILTER_H_
-#define COMPONENTS_TRACING_CHILD_TRACE_MESSAGE_FILTER_H_
-
-#include <stdint.h>
-
-#include "base/bind.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted_memory.h"
-#include "base/metrics/histogram.h"
-#include "base/time/time.h"
-#include "base/trace_event/memory_dump_request_args.h"
-#include "components/tracing/tracing_export.h"
-#include "ipc/message_filter.h"
-
-namespace base {
-class SingleThreadTaskRunner;
-}
-
-namespace tracing {
-
-// This class sends and receives trace messages on child processes.
-class TRACING_EXPORT ChildTraceMessageFilter : public IPC::MessageFilter {
- public:
-  explicit ChildTraceMessageFilter(
-      base::SingleThreadTaskRunner* ipc_task_runner);
-
-  // IPC::MessageFilter implementation.
-  void OnFilterAdded(IPC::Sender* sender) override;
-  void OnFilterRemoved() override;
-  bool OnMessageReceived(const IPC::Message& message) override;
-
-  void SendGlobalMemoryDumpRequest(
-      const base::trace_event::MemoryDumpRequestArgs& args,
-      const base::trace_event::MemoryDumpCallback& callback);
-
-  base::SingleThreadTaskRunner* ipc_task_runner() const {
-    return ipc_task_runner_;
-  }
-
- protected:
-  ~ChildTraceMessageFilter() override;
-
- private:
-  friend class ChildTraceMessageFilterTest;
-
-  // Message handlers.
-  void OnBeginTracing(const std::string& trace_config_str,
-                      base::TimeTicks browser_time,
-                      uint64_t tracing_process_id);
-  void OnEndTracing();
-  void OnCancelTracing();
-  void OnGetTraceLogStatus();
-  void OnSetWatchEvent(const std::string& category_name,
-                       const std::string& event_name);
-  void OnCancelWatchEvent();
-  void OnWatchEventMatched();
-  void OnProcessMemoryDumpRequest(
-      const base::trace_event::MemoryDumpRequestArgs& args);
-  void OnGlobalMemoryDumpResponse(uint64_t dump_guid, bool success);
-  void OnSetUMACallback(const std::string& histogram_name,
-                        int histogram_lower_value,
-                        int histogram_upper_value,
-                        bool repeat);
-  void OnClearUMACallback(const std::string& histogram_name);
-  void OnHistogramChanged(const std::string& histogram_name,
-                          base::Histogram::Sample reference_lower_value,
-                          base::Histogram::Sample reference_upper_value,
-                          bool repeat,
-                          base::Histogram::Sample actual_value);
-  void SendTriggerMessage(const std::string& histogram_name);
-  void SendAbortBackgroundTracingMessage();
-
-  // Callback from trace subsystem.
-  void OnTraceDataCollected(
-      const scoped_refptr<base::RefCountedString>& events_str_ptr,
-      bool has_more_events);
-
-  void OnProcessMemoryDumpDone(uint64_t dump_guid, bool success);
-
-  void SetSenderForTesting(IPC::Sender* sender);
-
-  IPC::Sender* sender_;
-  base::SingleThreadTaskRunner* ipc_task_runner_;
-
-  // guid of the outstanding request (to the Browser's MemoryDumpManager), if
-  // any. 0 if there is no request pending.
-  uint64_t pending_memory_dump_guid_;
-
-  // callback of the outstanding memory dump request, if any.
-  base::trace_event::MemoryDumpCallback pending_memory_dump_callback_;
-
-  base::Time histogram_last_changed_;
-
-  DISALLOW_COPY_AND_ASSIGN(ChildTraceMessageFilter);
-};
-
-}  // namespace tracing
-
-#endif  // COMPONENTS_TRACING_CHILD_TRACE_MESSAGE_FILTER_H_