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

headless/public/internal/value_conversions.h

Index: headless/public/internal/value_conversions.h
diff --git a/headless/public/internal/value_conversions.h b/headless/public/internal/value_conversions.h
index 17c6eda3f22b7dcfcb3c98638eab75be80df12f3..c25a0cd1ce22745342e3c4fb42fa2986be4199b4 100644
--- a/headless/public/internal/value_conversions.h
+++ b/headless/public/internal/value_conversions.h
@@ -32,22 +32,22 @@ struct FromValue {
 // partially specialize vector types.
 template <typename T>
 std::unique_ptr<base::Value> ToValueImpl(int value, T*) {
-  return base::WrapUnique(new base::FundamentalValue(value));
+  return base::MakeUnique<base::FundamentalValue>(value);
 }
 
 template <typename T>
 std::unique_ptr<base::Value> ToValueImpl(double value, T*) {
-  return base::WrapUnique(new base::FundamentalValue(value));
+  return base::MakeUnique<base::FundamentalValue>(value);
 }
 
 template <typename T>
 std::unique_ptr<base::Value> ToValueImpl(bool value, T*) {
-  return base::WrapUnique(new base::FundamentalValue(value));
+  return base::MakeUnique<base::FundamentalValue>(value);
 }
 
 template <typename T>
 std::unique_ptr<base::Value> ToValueImpl(const std::string& value, T*) {
-  return base::WrapUnique(new base::StringValue(value));
+  return base::MakeUnique<base::StringValue>(value);
 }
 
 template <typename T>