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

components/policy/core/common/async_policy_provider_unittest.cc

Index: components/policy/core/common/async_policy_provider_unittest.cc
diff --git a/components/policy/core/common/async_policy_provider_unittest.cc b/components/policy/core/common/async_policy_provider_unittest.cc
index aaf5e9c24d899e8616f30d1f9bafca819671ac2d..3972542b2aaf0dbe4b54a48f3d4e5a0da612b3cd 100644
--- a/components/policy/core/common/async_policy_provider_unittest.cc
+++ b/components/policy/core/common/async_policy_provider_unittest.cc
@@ -34,8 +34,8 @@ void SetPolicy(PolicyBundle* bundle,
                const std::string& value) {
   bundle->Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))
       .Set(name, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
-           POLICY_SOURCE_PLATFORM,
-           base::WrapUnique(new base::StringValue(value)), nullptr);
+           POLICY_SOURCE_PLATFORM, base::MakeUnique<base::StringValue>(value),
+           nullptr);
 }
 
 class MockPolicyLoader : public AsyncPolicyLoader {