Chromecast: adds handler to log metrics from external processes.

chromecast/browser/metrics/cast_metrics_service_client.h

Index: chromecast/browser/metrics/cast_metrics_service_client.h
diff --git a/chromecast/browser/metrics/cast_metrics_service_client.h b/chromecast/browser/metrics/cast_metrics_service_client.h
index 605c91c124d6084e165acc746f07a482e5249bec..5cba73c0d275c1c068f11d525f6f3bc7ac918f01 100644
--- a/chromecast/browser/metrics/cast_metrics_service_client.h
+++ b/chromecast/browser/metrics/cast_metrics_service_client.h
@@ -30,6 +30,7 @@ class URLRequestContextGetter;
 
 namespace chromecast {
 namespace metrics {
+class ExternalMetrics;
 
 class CastMetricsServiceClient : public ::metrics::MetricsServiceClient {
  public:
@@ -69,6 +70,9 @@ class CastMetricsServiceClient : public ::metrics::MetricsServiceClient {
   // Returns whether or not metrics reporting is enabled.
   bool IsReportingEnabled();
 
+#if defined(OS_LINUX)
+  scoped_ptr<ExternalMetrics> external_metrics_;
+#endif  // defined(OS_LINUX)
   scoped_ptr< ::metrics::MetricsStateManager> metrics_state_manager_;
   scoped_ptr< ::metrics::MetricsService> metrics_service_;
   scoped_refptr<base::MessageLoopProxy> metrics_service_loop_;