Make callers of FromUTC(Local)Exploded in chrome/ use new time API.

chrome/browser/engagement/site_engagement_score_unittest.cc

Index: chrome/browser/engagement/site_engagement_score_unittest.cc
diff --git a/chrome/browser/engagement/site_engagement_score_unittest.cc b/chrome/browser/engagement/site_engagement_score_unittest.cc
index 08d7924c65e516699dfe4cbe5a6c9e0fb15f308e..c9787fc73e2f85e214de9b45708746e429b01643 100644
--- a/chrome/browser/engagement/site_engagement_score_unittest.cc
+++ b/chrome/browser/engagement/site_engagement_score_unittest.cc
@@ -33,7 +33,10 @@ base::Time GetReferenceTime() {
   exploded_reference_time.second = 0;
   exploded_reference_time.millisecond = 0;
 
-  return base::Time::FromLocalExploded(exploded_reference_time);
+  base::Time out_time;
+  EXPECT_TRUE(
+      base::Time::FromLocalExploded(exploded_reference_time, &out_time));
+  return out_time;
 }
 
 }  // namespace