Stop passing raw pointers to base::Value API in c/b/chromeos and c/b/extensions

chrome/browser/extensions/extension_prefs_unittest.cc

Index: chrome/browser/extensions/extension_prefs_unittest.cc
diff --git a/chrome/browser/extensions/extension_prefs_unittest.cc b/chrome/browser/extensions/extension_prefs_unittest.cc
index ba014668a4bb0d7a3eb2e053b4a3e7315b5c6d91..d9e3a885a71ebe4dc32037d99732fab1f46c8d88 100644
--- a/chrome/browser/extensions/extension_prefs_unittest.cc
+++ b/chrome/browser/extensions/extension_prefs_unittest.cc
@@ -572,7 +572,7 @@ class ExtensionPrefsFinishDelayedInstallInfo : public ExtensionPrefsTest {
     manifest.SetString(manifest_keys::kVersion, "0.2");
     std::unique_ptr<base::ListValue> scripts(new base::ListValue);
     scripts->AppendString("test.js");
-    manifest.Set(manifest_keys::kBackgroundScripts, scripts.release());
+    manifest.Set(manifest_keys::kBackgroundScripts, std::move(scripts));
     base::FilePath path =
         prefs_.extensions_dir().AppendASCII("test_0.2");
     std::string errors;