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

chrome/browser/printing/cloud_print/privet_device_lister_unittest.cc

Index: chrome/browser/printing/cloud_print/privet_device_lister_unittest.cc
diff --git a/chrome/browser/printing/cloud_print/privet_device_lister_unittest.cc b/chrome/browser/printing/cloud_print/privet_device_lister_unittest.cc
index f620b0ccf5c523cd96786a91e518cb1898ddc06b..19e2e2da9cdb8a0908dcfb60a0432ab61c6a3332 100644
--- a/chrome/browser/printing/cloud_print/privet_device_lister_unittest.cc
+++ b/chrome/browser/printing/cloud_print/privet_device_lister_unittest.cc
@@ -120,8 +120,8 @@ class MockServiceDiscoveryClient : public ServiceDiscoveryClient {
   std::unique_ptr<ServiceWatcher> CreateServiceWatcher(
       const std::string& service_type,
       const ServiceWatcher::UpdatedCallback& callback) override {
-    return base::WrapUnique(
-        new MockServiceWatcher(service_type, callback, mock_delegate_));
+    return base::MakeUnique<MockServiceWatcher>(service_type, callback,
+                                                mock_delegate_);
   }
 
   // Create a service resolver object for getting detailed service information
@@ -129,8 +129,8 @@ class MockServiceDiscoveryClient : public ServiceDiscoveryClient {
   std::unique_ptr<ServiceResolver> CreateServiceResolver(
       const std::string& service_name,
       const ServiceResolver::ResolveCompleteCallback& callback) override {
-    return base::WrapUnique(
-        new MockServiceResolver(service_name, callback, mock_delegate_));
+    return base::MakeUnique<MockServiceResolver>(service_name, callback,
+                                                 mock_delegate_);
   }
 
   // Not used in this test.