Use stricter type checking in UMA_HISTOGRAM_ENUMERATION

components/metrics/stability_metrics_helper.cc

Index: components/metrics/stability_metrics_helper.cc
diff --git a/components/metrics/stability_metrics_helper.cc b/components/metrics/stability_metrics_helper.cc
index 82b31d271eb9e461470779984bc5ec0a82373748..1ba27b94987ff7dd34d148541184d41170ac6db8 100644
--- a/components/metrics/stability_metrics_helper.cc
+++ b/components/metrics/stability_metrics_helper.cc
@@ -53,7 +53,7 @@ int MapCrashExitCodeForHistogram(int exit_code) {
   return std::abs(exit_code);
 }
 
-void RecordChildKills(int histogram_type) {
+void RecordChildKills(RendererType histogram_type) {
   UMA_HISTOGRAM_ENUMERATION("BrowserRenderProcessHost.ChildKills",
                             histogram_type, RENDERER_TYPE_COUNT);
 }
@@ -179,7 +179,7 @@ void StabilityMetricsHelper::LogLoadStarted() {
 void StabilityMetricsHelper::LogRendererCrash(bool was_extension_process,
                                               base::TerminationStatus status,
                                               int exit_code) {
-  int histogram_type =
+  RendererType histogram_type =
       was_extension_process ? RENDERER_TYPE_EXTENSION : RENDERER_TYPE_RENDERER;
 
   switch (status) {