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

net/http/http_util_unittest.cc

Index: net/http/http_util_unittest.cc
diff --git a/net/http/http_util_unittest.cc b/net/http/http_util_unittest.cc
index f2c2146215ecc645bbea998d1cd7cd8002b82d0f..2441f08d3610b3fd7f334372c54474db1846d19c 100644
--- a/net/http/http_util_unittest.cc
+++ b/net/http/http_util_unittest.cc
@@ -965,10 +965,12 @@ TEST(HttpUtilTest, ParseRanges) {
 
 TEST(HttpUtilTest, ParseRetryAfterHeader) {
   base::Time::Exploded now_exploded = {2014, 11, 4, 5, 22, 39, 30, 0};
-  base::Time now = base::Time::FromUTCExploded(now_exploded);
+  base::Time now;
+  EXPECT_TRUE(base::Time::FromUTCExploded(now_exploded, &now));
 
   base::Time::Exploded later_exploded = {2015, 1, 5, 1, 12, 34, 56, 0};
-  base::Time later = base::Time::FromUTCExploded(later_exploded);
+  base::Time later;
+  EXPECT_TRUE(base::Time::FromUTCExploded(later_exploded, &later));
 
   const struct {
     const char* retry_after_string;