Rewrite simple uses of base::ListValue::Append(base::Value*) on CrOS.

chrome/browser/chromeos/platform_keys/key_permissions.cc

Index: chrome/browser/chromeos/platform_keys/key_permissions.cc
diff --git a/chrome/browser/chromeos/platform_keys/key_permissions.cc b/chrome/browser/chromeos/platform_keys/key_permissions.cc
index 0496cb0e747709f145d746effe6be1e1016be728..312f2759befe650c5214cb117f32a5b3382baf1f 100644
--- a/chrome/browser/chromeos/platform_keys/key_permissions.cc
+++ b/chrome/browser/chromeos/platform_keys/key_permissions.cc
@@ -295,7 +295,7 @@ KeyPermissions::PermissionsForExtension::KeyEntriesToState() {
       new_entry->SetBooleanWithoutPathExpansion(kStateStoreSignUnlimited,
                                                 entry.sign_unlimited);
     }
-    new_state->Append(new_entry.release());
+    new_state->Append(std::move(new_entry));
   }
   return std::move(new_state);
 }