Convert //chrome/browser/metrics from scoped_ptr to std::unique_ptr

chrome/browser/metrics/perf/perf_provider_chromeos.h

Index: chrome/browser/metrics/perf/perf_provider_chromeos.h
diff --git a/chrome/browser/metrics/perf/perf_provider_chromeos.h b/chrome/browser/metrics/perf/perf_provider_chromeos.h
index 68d1cd79b908705679f9fd06e7bda6a73e991dcc..3693c6db123797ed6dc5acfb1894c8e7fd6ee1a8 100644
--- a/chrome/browser/metrics/perf/perf_provider_chromeos.h
+++ b/chrome/browser/metrics/perf/perf_provider_chromeos.h
@@ -132,8 +132,8 @@ class PerfProvider : public base::NonThreadSafe,
   // |result| is the return value of running perf/quipper. It is 0 if successful
   // and nonzero if not successful.
   void ParseOutputProtoIfValid(
-      scoped_ptr<WindowedIncognitoObserver> incognito_observer,
-      scoped_ptr<SampledProfile> sampled_profile,
+      std::unique_ptr<WindowedIncognitoObserver> incognito_observer,
+      std::unique_ptr<SampledProfile> sampled_profile,
       int result,
       const std::vector<uint8_t>& perf_data,
       const std::vector<uint8_t>& perf_stat);
@@ -194,7 +194,7 @@ class PerfProvider : public base::NonThreadSafe,
 
   // Collects perf data for a given |trigger_event|. Calls perf via the ChromeOS
   // debug daemon's dbus interface.
-  void CollectIfNecessary(scoped_ptr<SampledProfile> sampled_profile);
+  void CollectIfNecessary(std::unique_ptr<SampledProfile> sampled_profile);
 
   // Collects perf data on a repeating basis by calling CollectIfNecessary() and
   // reschedules it to be collected again.