Add extra parameter to BrowserChildProcessCrashed to pass the exit_code at time of crash/termination

chromecast/browser/metrics/cast_stability_metrics_provider.cc

Index: chromecast/browser/metrics/cast_stability_metrics_provider.cc
diff --git a/chromecast/browser/metrics/cast_stability_metrics_provider.cc b/chromecast/browser/metrics/cast_stability_metrics_provider.cc
index 2b74c8cbeab4416c2643b6b1596c784636d74040..62150a3af3f217642eedac7e3d90b0d58ae592df 100644
--- a/chromecast/browser/metrics/cast_stability_metrics_provider.cc
+++ b/chromecast/browser/metrics/cast_stability_metrics_provider.cc
@@ -140,7 +140,8 @@ void CastStabilityMetricsProvider::Observe(
 }
 
 void CastStabilityMetricsProvider::BrowserChildProcessCrashed(
-    const content::ChildProcessData& data) {
+    const content::ChildProcessData& data,
+    int exit_code) {
   IncrementPrefValue(prefs::kStabilityChildProcessCrashCount);
 }