Revert of First pass BackgroundTracingManager.

content/public/browser/background_tracing_config.h

-// Copyright 2015 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 CONTENT_PUBLIC_BROWSER_BACKGROUND_TRACING_CONFIG_H_
-#define CONTENT_PUBLIC_BROWSER_BACKGROUND_TRACING_CONFIG_H_
-
-#include "base/trace_event/trace_event_impl.h"
-#include "content/common/content_export.h"
-
-namespace base {
-class DictionaryValue;
-}
-
-namespace content {
-
-// BackgroundTracingConfig is passed to the BackgroundTracingManager to
-// setup the trigger rules used to enable/disable background tracing.
-struct CONTENT_EXPORT BackgroundTracingConfig {
-  virtual ~BackgroundTracingConfig();
-
-  enum Mode {
-    PREEMPTIVE_TRACING_MODE,
-    REACTIVE_TRACING_MODE,
-  };
-  enum CategoryPreset {
-    BENCHMARK,
-    BENCHMARK_DEEP,
-  };
-
-  Mode mode;
-
-  static BackgroundTracingConfig* FromDict(const base::DictionaryValue* dict);
-  static void IntoDict(const BackgroundTracingConfig* config,
-                       base::DictionaryValue* dict);
-
- protected:
-  BackgroundTracingConfig(Mode mode);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_PUBLIC_BROWSER_BACKGROUND_TRACING_CONFIG_H_