Re-write many calls to WrapUnique() with MakeUnique()

net/dns/host_resolver_impl_unittest.cc

Index: net/dns/host_resolver_impl_unittest.cc
diff --git a/net/dns/host_resolver_impl_unittest.cc b/net/dns/host_resolver_impl_unittest.cc
index 87e860fbc7b9d9527e9303ce46fb9a9e94e1a08e..099d60dfb27283e0894a29244c50da423313dc1b 100644
--- a/net/dns/host_resolver_impl_unittest.cc
+++ b/net/dns/host_resolver_impl_unittest.cc
@@ -564,8 +564,8 @@ class HostResolverImplTest : public testing::Test {
   // not start until released by |proc_->SignalXXX|.
   Request* CreateRequest(const HostResolver::RequestInfo& info,
                          RequestPriority priority) {
-    requests_.push_back(base::WrapUnique(new Request(
-        info, priority, requests_.size(), resolver_.get(), handler_.get())));
+    requests_.push_back(base::MakeUnique<Request>(
+        info, priority, requests_.size(), resolver_.get(), handler_.get()));
     return requests_.back().get();
   }