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| 1 // Copyright (c) 2012 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 CHROME_BROWSER_METRICS_TRACKING_SYNCHRONIZER_OBSERVER_H_ |
| 6 #define CHROME_BROWSER_METRICS_TRACKING_SYNCHRONIZER_OBSERVER_H_ |
| 7 #pragma once |
| 8 |
| 9 #include "content/public/common/process_type.h" |
| 10 |
| 11 namespace tracked_objects { |
| 12 struct ProcessDataSnapshot; |
| 13 } |
| 14 |
| 15 namespace chrome_browser_metrics { |
| 16 |
| 17 // Observer for notifications from the TrackingSynchronizer class. |
| 18 class TrackingSynchronizerObserver { |
| 19 public: |
| 20 // Received |profiler_data| from a single process of |process_type|. |
| 21 // The observer should assume there might be more data coming until |
| 22 // |FinishedReceivingData()| is called. |
| 23 virtual void ReceivedProfilerData( |
| 24 const tracked_objects::ProcessDataSnapshot& profiler_data, |
| 25 content::ProcessType process_type) = 0; |
| 26 |
| 27 // The observer should not expect any more calls to |ReceivedProfilerData()| |
| 28 // (without re-registering). This is sent either when data from all processes |
| 29 // has been gathered, or when the request times out. |
| 30 virtual void FinishedReceivingProfilerData() {} |
| 31 |
| 32 protected: |
| 33 TrackingSynchronizerObserver() {} |
| 34 virtual ~TrackingSynchronizerObserver() {} |
| 35 |
| 36 private: |
| 37 DISALLOW_COPY_AND_ASSIGN(TrackingSynchronizerObserver); |
| 38 }; |
| 39 |
| 40 } // namespace chrome_browser_metrics |
| 41 |
| 42 #endif // CHROME_BROWSER_METRICS_TRACKING_SYNCHRONIZER_OBSERVER_H_ |
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