Use unique_ptr<DictionaryValue> in ProxyConfigDictionary

chrome/browser/prefs/chrome_command_line_pref_store_unittest.cc

Index: chrome/browser/prefs/chrome_command_line_pref_store_unittest.cc
diff --git a/chrome/browser/prefs/chrome_command_line_pref_store_unittest.cc b/chrome/browser/prefs/chrome_command_line_pref_store_unittest.cc
index 50547cffee6a0b62f2d3c8f7fb1f7808147d351f..524477104815ae8f0f60f6a4e81a12efd3cc17d7 100644
--- a/chrome/browser/prefs/chrome_command_line_pref_store_unittest.cc
+++ b/chrome/browser/prefs/chrome_command_line_pref_store_unittest.cc
@@ -39,7 +39,7 @@ class TestCommandLinePrefStore : public ChromeCommandLinePrefStore {
     ASSERT_TRUE(GetValue(proxy_config::prefs::kProxy, &value));
     ASSERT_EQ(base::Value::Type::DICTIONARY, value->GetType());
     ProxyConfigDictionary dict(
-        static_cast<const base::DictionaryValue*>(value));
+        static_cast<const base::DictionaryValue*>(value)->CreateDeepCopy());
     ProxyPrefs::ProxyMode actual_mode;
     ASSERT_TRUE(dict.GetMode(&actual_mode));
     EXPECT_EQ(expected_mode, actual_mode);
@@ -122,7 +122,8 @@ TEST(ChromeCommandLinePrefStoreTest, MultipleSwitches) {
   const base::Value* value = NULL;
   ASSERT_TRUE(store->GetValue(proxy_config::prefs::kProxy, &value));
   ASSERT_EQ(base::Value::Type::DICTIONARY, value->GetType());
-  ProxyConfigDictionary dict(static_cast<const base::DictionaryValue*>(value));
+  ProxyConfigDictionary dict(
+      static_cast<const base::DictionaryValue*>(value)->CreateDeepCopy());
 
   std::string string_result;