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

extensions/browser/load_monitoring_extension_host_queue_unittest.cc

Index: extensions/browser/load_monitoring_extension_host_queue_unittest.cc
diff --git a/extensions/browser/load_monitoring_extension_host_queue_unittest.cc b/extensions/browser/load_monitoring_extension_host_queue_unittest.cc
index a36bdfa5ef1174d91d38d117cec4e971b3914073..6b1ac99d1faa77523ff8b6171dcabefbe1d49378 100644
--- a/extensions/browser/load_monitoring_extension_host_queue_unittest.cc
+++ b/extensions/browser/load_monitoring_extension_host_queue_unittest.cc
@@ -70,7 +70,7 @@ class LoadMonitoringExtensionHostQueueTest : public ExtensionsTest {
   // Creates a new DeferredStartRenderHost. Ownership is held by this class,
   // not passed to caller.
   StubDeferredStartRenderHost* CreateHost() {
-    stubs_.push_back(base::WrapUnique(new StubDeferredStartRenderHost()));
+    stubs_.push_back(base::MakeUnique<StubDeferredStartRenderHost>());
     return stubs_.back().get();
   }