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

blimp/net/blimp_message_checkpointer_unittest.cc

Index: blimp/net/blimp_message_checkpointer_unittest.cc
diff --git a/blimp/net/blimp_message_checkpointer_unittest.cc b/blimp/net/blimp_message_checkpointer_unittest.cc
index ab4637e9b30e70253f655f5c8602debab00105da..2dc829a72462d256f6e49ebc29238481612c4361 100644
--- a/blimp/net/blimp_message_checkpointer_unittest.cc
+++ b/blimp/net/blimp_message_checkpointer_unittest.cc
@@ -51,8 +51,8 @@ class BlimpMessageCheckpointerTest : public testing::Test {
   }
 
   void SetUp() override {
-    checkpointer_ = base::WrapUnique(new BlimpMessageCheckpointer(
-        &incoming_processor_, &outgoing_processor_, &checkpoint_observer_));
+    checkpointer_ = base::MakeUnique<BlimpMessageCheckpointer>(
+        &incoming_processor_, &outgoing_processor_, &checkpoint_observer_);
   }
 
   MOCK_METHOD1(IncomingCompletionCallback, void(int));