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

blimp/net/engine_connection_manager_unittest.cc

Index: blimp/net/engine_connection_manager_unittest.cc
diff --git a/blimp/net/engine_connection_manager_unittest.cc b/blimp/net/engine_connection_manager_unittest.cc
index d178bb734bfc7a66d4906212d96e79fc789ad548..f69113a0b164f3e5a7207aabc90cd6b09c3f3bd4 100644
--- a/blimp/net/engine_connection_manager_unittest.cc
+++ b/blimp/net/engine_connection_manager_unittest.cc
@@ -39,9 +39,9 @@ class EngineConnectionManagerTest : public testing::Test {
   ~EngineConnectionManagerTest() override {}
 
   std::unique_ptr<BlimpConnection> CreateConnection() {
-    return base::WrapUnique(
-        new BlimpConnection(base::WrapUnique(new MockPacketReader),
-                            base::WrapUnique(new MockPacketWriter)));
+    return base::MakeUnique<BlimpConnection>(
+        base::WrapUnique(new MockPacketReader),
+        base::WrapUnique(new MockPacketWriter));
   }
 
  protected: