Moves ProfilerMetricsProvider to //components/metrics.

chrome/browser/metrics/tracking_synchronizer_observer.h

-// 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 CHROME_BROWSER_METRICS_TRACKING_SYNCHRONIZER_OBSERVER_H_
-#define CHROME_BROWSER_METRICS_TRACKING_SYNCHRONIZER_OBSERVER_H_
-
-namespace tracked_objects {
-struct ProcessDataSnapshot;
-}
-
-namespace chrome_browser_metrics {
-
-// Observer for notifications from the TrackingSynchronizer class.
-class TrackingSynchronizerObserver {
- public:
-  // Received |profiler_data| from a single process of |process_type|.
-  // The observer should assume there might be more data coming until
-  // |FinishedReceivingData()| is called.
-  virtual void ReceivedProfilerData(
-      const tracked_objects::ProcessDataSnapshot& profiler_data,
-      int process_type) = 0;
-
-  // The observer should not expect any more calls to |ReceivedProfilerData()|
-  // (without re-registering).  This is sent either when data from all processes
-  // has been gathered, or when the request times out.
-  virtual void FinishedReceivingProfilerData() {}
-
- protected:
-  TrackingSynchronizerObserver() {}
-  virtual ~TrackingSynchronizerObserver() {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(TrackingSynchronizerObserver);
-};
-
-}  // namespace chrome_browser_metrics
-
-#endif  // CHROME_BROWSER_METRICS_TRACKING_SYNCHRONIZER_OBSERVER_H_