webui/options: Do not use Value::CreateStringValue.

chrome/browser/ui/webui/options/preferences_browsertest.h

Index: chrome/browser/ui/webui/options/preferences_browsertest.h
diff --git a/chrome/browser/ui/webui/options/preferences_browsertest.h b/chrome/browser/ui/webui/options/preferences_browsertest.h
index b26ac6203c856d1440286928f3978d57fdda8d22..fe0841a88e4635126f86259bb60a235a679c3df4 100644
--- a/chrome/browser/ui/webui/options/preferences_browsertest.h
+++ b/chrome/browser/ui/webui/options/preferences_browsertest.h
@@ -61,9 +61,9 @@ class PreferencesBrowserTest : public InProcessBrowserTest {
 
   // Verifies that a dictionary contains a (key, value) pair. Takes ownership of
   // |expected|.
-  void VerifyKeyValue(const base::DictionaryValue* dict,
+  void VerifyKeyValue(const base::DictionaryValue& dict,
                       const std::string& key,
-                      base::Value* expected);
+                      const base::Value& expected);
   // Verifies that a dictionary contains a given pref and that its value has
   // been decorated correctly.
   void VerifyPref(const base::DictionaryValue* prefs,