UMA: use a more frequent upload interval for Chromecast.

components/metrics/test_metrics_service_client.cc

Index: components/metrics/test_metrics_service_client.cc
diff --git a/components/metrics/test_metrics_service_client.cc b/components/metrics/test_metrics_service_client.cc
index 53cb1d93c229228c02f99e04cbd8478c8171daaa..9dcb370eb44f8a904dc126e698aa133786c5d828 100644
--- a/components/metrics/test_metrics_service_client.cc
+++ b/components/metrics/test_metrics_service_client.cc
@@ -69,4 +69,8 @@ scoped_ptr<MetricsLogUploader> TestMetricsServiceClient::CreateUploader(
   return scoped_ptr<MetricsLogUploader>();
 }
 
+base::TimeDelta TestMetricsServiceClient::GetStandardUploadInterval() {
+  return base::TimeDelta::FromMinutes(5);
+}
+
 }  // namespace metrics