Chromecast: adds class to help record complex histograms.

chromecast/browser/cast_browser_process.cc

Index: chromecast/browser/cast_browser_process.cc
diff --git a/chromecast/browser/cast_browser_process.cc b/chromecast/browser/cast_browser_process.cc
index 03377d46a479ab02feef13140d9ef7446286c7ef..5638dd11fa3f66bca9ee77a2c1a0300f87744b6d 100644
--- a/chromecast/browser/cast_browser_process.cc
+++ b/chromecast/browser/cast_browser_process.cc
@@ -5,6 +5,7 @@
 #include "chromecast/browser/cast_browser_process.h"
 
 #include "base/logging.h"
+#include "chromecast/base/metrics/cast_metrics_helper.h"
 #include "chromecast/browser/cast_browser_context.h"
 #include "chromecast/browser/devtools/remote_debugging_server.h"
 #include "chromecast/browser/metrics/cast_metrics_service_client.h"
@@ -54,6 +55,12 @@ void CastBrowserProcess::SetRemoteDebuggingServer(
   remote_debugging_server_.reset(remote_debugging_server);
 }
 
+void CastBrowserProcess::SetMetricsHelper(
+    metrics::CastMetricsHelper* metrics_helper) {
+  DCHECK(!metrics_helper_);
+  metrics_helper_.reset(metrics_helper);
+}
+
 void CastBrowserProcess::SetMetricsServiceClient(
     metrics::CastMetricsServiceClient* metrics_service_client) {
   DCHECK(!metrics_service_client_);