Convert JsonWriter::Write to taking a const ref for the in-param

chrome/browser/extensions/api/developer_private/extension_info_generator_unittest.cc

Index: chrome/browser/extensions/api/developer_private/extension_info_generator_unittest.cc
diff --git a/chrome/browser/extensions/api/developer_private/extension_info_generator_unittest.cc b/chrome/browser/extensions/api/developer_private/extension_info_generator_unittest.cc
index 3b7d50d97cc6a91e64481f3297be41854f3d6055..65e3aec67ffb18e1ef4f1722b26c09d3aae6ff2b 100644
--- a/chrome/browser/extensions/api/developer_private/extension_info_generator_unittest.cc
+++ b/chrome/browser/extensions/api/developer_private/extension_info_generator_unittest.cc
@@ -146,15 +146,15 @@ class ExtensionInfoGeneratorUnitTest : public ExtensionServiceTestBase {
     std::string actual_string;
     for (base::DictionaryValue::Iterator field(*expected_output_data);
          !field.IsAtEnd(); field.Advance()) {
-      const base::Value* expected_value = &field.value();
+      const base::Value& expected_value = field.value();
       base::Value* actual_value = nullptr;
       EXPECT_TRUE(actual_output_data->Get(field.key(), &actual_value)) <<
           field.key() + " is missing" + paths_details;
       if (!actual_value)
         continue;
-      if (!actual_value->Equals(expected_value)) {
+      if (!actual_value->Equals(&expected_value)) {
         base::JSONWriter::Write(expected_value, &expected_string);
-        base::JSONWriter::Write(actual_value, &actual_string);
+        base::JSONWriter::Write(*actual_value, &actual_string);
         EXPECT_EQ(expected_string, actual_string) <<
             field.key() << paths_details;
       }