content/public/browser/background_tracing_config.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_PUBLIC_BROWSER_BACKGROUND_TRACING_CONFIG_H_
   6 #define CONTENT_PUBLIC_BROWSER_BACKGROUND_TRACING_CONFIG_H_
   7
   8 #include "base/trace_event/trace_event_impl.h"
   9 #include "content/common/content_export.h"
  10
  11 namespace base {
  12 class DictionaryValue;
  13 }
  14
  15 namespace content {
  16
  17 // BackgroundTracingConfig is passed to the BackgroundTracingManager to
  18 // setup the trigger rules used to enable/disable background tracing.
  19 class CONTENT_EXPORT BackgroundTracingConfig {
  20  public:
  21   virtual ~BackgroundTracingConfig();
  22
  23   enum TracingMode {
  24     PREEMPTIVE,
  25     REACTIVE,
  26   };
  27   TracingMode tracing_mode() const { return tracing_mode_; }
  28
  29   static scoped_ptr<BackgroundTracingConfig> FromDict(
  30       const base::DictionaryValue* dict);
  31
  32   virtual void IntoDict(base::DictionaryValue* dict) const = 0;
  33
  34  private:
  35   friend class BackgroundTracingConfigImpl;
  36   explicit BackgroundTracingConfig(TracingMode tracing_mode);
  37
  38   const TracingMode tracing_mode_;
  39 };
  40
  41 }  // namespace content
  42
  43 #endif  // CONTENT_PUBLIC_BROWSER_BACKGROUND_TRACING_CONFIG_H_