JSONWriter cleanup: integrate pretty print into write options.

chrome/browser/policy/configuration_policy_handler.cc

Index: chrome/browser/policy/configuration_policy_handler.cc
diff --git a/chrome/browser/policy/configuration_policy_handler.cc b/chrome/browser/policy/configuration_policy_handler.cc
index 6d6203e94b3995199c253a2b31404eba092b963d..9c0c94dfec1765ab5d6c9cae8f834c7ccc6fa7dc 100644
--- a/chrome/browser/policy/configuration_policy_handler.cc
+++ b/chrome/browser/policy/configuration_policy_handler.cc
@@ -164,7 +164,10 @@ void ConfigurationPolicyHandler::PrepareForDisplaying(
     if (entry.value->GetAsDictionary(&value)) {
       std::string json_string;
       base::JSONWriter::WriteWithOptions(
-          value, true, base::JSONWriter::OPTIONS_DO_NOT_ESCAPE, &json_string);
+          value,
+          base::JSONWriter::OPTIONS_DO_NOT_ESCAPE |
+              base::JSONWriter::OPTIONS_PRETTY_PRINT,
+          &json_string);
       StringValue* string_value = Value::CreateStringValue(json_string);
       policies->Set(it->first, entry.level, entry.scope, string_value);
     }