Add UMA metrics for Android Chrome Google Search.

components/google/core/browser/google_search_metrics.cc

Index: components/google/core/browser/google_search_metrics.cc
diff --git a/components/google/core/browser/google_search_metrics.cc b/components/google/core/browser/google_search_metrics.cc
index 98078f6b127f815a555096467cc1fde8077e8705..30d42dc20121ee4556c163b99827b1410252829f 100644
--- a/components/google/core/browser/google_search_metrics.cc
+++ b/components/google/core/browser/google_search_metrics.cc
@@ -17,3 +17,18 @@ void GoogleSearchMetrics::RecordGoogleSearch(AccessPoint ap) const {
   DCHECK_NE(AP_BOUNDARY, ap);
   UMA_HISTOGRAM_ENUMERATION("GoogleSearch.AccessPoint", ap, AP_BOUNDARY);
 }
+
+#if defined(OS_ANDROID)
+void GoogleSearchMetrics::RecordAndroidGoogleSearch(
+    AccessPoint ap,
+    bool prerender_enabled) const {
+  DCHECK_NE(AP_BOUNDARY, ap);
+  if (prerender_enabled) {
+    UMA_HISTOGRAM_ENUMERATION(
+        "AndroidGoogleSearch.AccessPoint_PrerenderEnabled", ap, AP_BOUNDARY);
+  } else {
+    UMA_HISTOGRAM_ENUMERATION(
+        "AndroidGoogleSearch.AccessPoint_PrerenderDisabled", ap, AP_BOUNDARY);
+  }
+}
+#endif