metrics: Add dbus interface for GetRandomPerfOutput

chrome/browser/metrics/perf_provider_chromeos.h

Index: chrome/browser/metrics/perf_provider_chromeos.h
diff --git a/chrome/browser/metrics/perf_provider_chromeos.h b/chrome/browser/metrics/perf_provider_chromeos.h
index 8353be5f59b32f9574b8566fa119a2fc6f065e26..1ccddd2f79044e5aa31f7ad25f0ba839fea6779a 100644
--- a/chrome/browser/metrics/perf_provider_chromeos.h
+++ b/chrome/browser/metrics/perf_provider_chromeos.h
@@ -93,14 +93,18 @@ class PerfProvider : public base::NonThreadSafe,
       const base::TimeDelta& time_after_restore,
       int num_tabs_restored);
 
-  // Parses a perf data protobuf from the |data| passed in only if the
-  // |incognito_observer| indicates that no incognito window had been opened
-  // during the profile collection period.
+  // Parses a PerfDataProto from serialized data |perf_data|, if it exists.
+  // Parses a PerfStatProto from serialized data |perf_stat|, if it exists.
+  // |incognito_observer| indicates whether an incognito window had been opened
+  // during the profile collection period. If there was an incognito window,
+  // discard the incoming data.
   // |trigger_event| is the cause of the perf data collection.
-  void ParseProtoIfValid(
+  void ParseOutputProtoIfValid(
       scoped_ptr<WindowedIncognitoObserver> incognito_observer,
       scoped_ptr<SampledProfile> sampled_profile,
-      const std::vector<uint8>& data);
+      int result,

[Ilya Sherman, 2015/06/27 05:44:24]

Please document the |result|.

[Simon Que, 2015/06/30 05:28:09]

Done.

+      const std::vector<uint8>& perf_data,
+      const std::vector<uint8>& perf_stat);
 
   // Vector of SampledProfile protobufs containing perf profiles.
   std::vector<SampledProfile> cached_perf_data_;