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

components/prefs/testing_pref_store.cc

Index: components/prefs/testing_pref_store.cc
diff --git a/components/prefs/testing_pref_store.cc b/components/prefs/testing_pref_store.cc
index 426bd643f36c01e7ed362d5c92db2f8912b8aaf3..2060c9fdcec25098eb06f112bfa87ffcccf8b414 100644
--- a/components/prefs/testing_pref_store.cc
+++ b/components/prefs/testing_pref_store.cc
@@ -118,17 +118,17 @@ void TestingPrefStore::ReportValueChanged(const std::string& key,
 
 void TestingPrefStore::SetString(const std::string& key,
                                  const std::string& value) {
-  SetValue(key, base::WrapUnique(new base::StringValue(value)),
+  SetValue(key, base::MakeUnique<base::StringValue>(value),
            DEFAULT_PREF_WRITE_FLAGS);
 }
 
 void TestingPrefStore::SetInteger(const std::string& key, int value) {
-  SetValue(key, base::WrapUnique(new base::FundamentalValue(value)),
+  SetValue(key, base::MakeUnique<base::FundamentalValue>(value),
            DEFAULT_PREF_WRITE_FLAGS);
 }
 
 void TestingPrefStore::SetBoolean(const std::string& key, bool value) {
-  SetValue(key, base::WrapUnique(new base::FundamentalValue(value)),
+  SetValue(key, base::MakeUnique<base::FundamentalValue>(value),
            DEFAULT_PREF_WRITE_FLAGS);
 }