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

extensions/browser/load_monitoring_extension_host_queue_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/browser/load_monitoring_extension_host_queue.h"
 
 #include <stddef.h>
 
 #include <limits>
 #include <vector>
@@ skipping 52 matching lines @@
         std::unique_ptr<ExtensionHostQueue>(new SerialExtensionHostQueue()),
         base::TimeDelta(),  // no delay, easier to test
         base::Bind(&LoadMonitoringExtensionHostQueueTest::Finished,
                    base::Unretained(this))));
   }
 
  protected:
   // 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();
   }
 
   // Our single LoadMonitoringExtensionHostQueue instance.
   LoadMonitoringExtensionHostQueue* queue() { return queue_.get(); }
 
   // Returns true if the queue has finished monitoring.
   bool finished() const { return finished_; }
 
   // These are available after the queue has finished (in which case finished()
@@ skipping 264 matching lines @@
   queue()->Remove(host3);
   queue()->Remove(host4);
 
   EXPECT_FALSE(host1->IsObservedBy(queue()));
   EXPECT_FALSE(host2->IsObservedBy(queue()));
   EXPECT_FALSE(host3->IsObservedBy(queue()));
   EXPECT_FALSE(host4->IsObservedBy(queue()));
 }
 
 }  // namespace extensions