Metrics log modification to handle external components.

components/metrics/metrics_service.h

Index: components/metrics/metrics_service.h
diff --git a/components/metrics/metrics_service.h b/components/metrics/metrics_service.h
index d7a612c83c1b6abde522f47c04dc14430398cf67..8a71d07b44fa56b36d43ec1f17d697215d9feac0 100644
--- a/components/metrics/metrics_service.h
+++ b/components/metrics/metrics_service.h
@@ -151,6 +151,10 @@ class MetricsService : public base::HistogramFlattener {
   // Returns the install date of the application, in seconds since the epoch.
   int64 GetInstallDate();
 
+  // Returns the date at which the current metrics client ID was created as
+  // an int64 containing seconds since the epoch.
+  int64 GetMetricsReportingEnabledDate();
+
   // Returns the preferred entropy provider used to seed persistent activities
   // based on whether or not metrics reporting will be permitted on this client.
   //
@@ -243,6 +247,9 @@ class MetricsService : public base::HistogramFlattener {
   // Clears the stability metrics that are saved in local state.
   void ClearSavedStabilityMetrics();
 
+  // Pushes a log that has been generated by an external component.
+  void PushExternalLog(const std::string& log);
+
  protected:
   // Exposed for testing.
   MetricsLogManager* log_manager() { return &log_manager_; }