jni_generator: Make all object-returning natives return ScopedJavaLocalRef.

android_webview/native/android_protocol_handler.cc

Index: android_webview/native/android_protocol_handler.cc
diff --git a/android_webview/native/android_protocol_handler.cc b/android_webview/native/android_protocol_handler.cc
index be3376cc976e0f2815e0d2b211c10e1ded01d171..e25b36dae3efbf402399c696361e81030e974742 100644
--- a/android_webview/native/android_protocol_handler.cc
+++ b/android_webview/native/android_protocol_handler.cc
@@ -281,16 +281,14 @@ static void SetResourceContextForTesting(JNIEnv* env, jclass /*clazz*/,
   }
 }
 
-static jstring GetAndroidAssetPath(JNIEnv* env, jclass /*clazz*/) {
-  // OK to release, JNI binding.
-  return ConvertUTF8ToJavaString(
-      env, android_webview::kAndroidAssetPath).Release();
+static ScopedJavaLocalRef<jstring> GetAndroidAssetPath(JNIEnv* env,
+                                                       jclass /*clazz*/) {
+  return ConvertUTF8ToJavaString(env, android_webview::kAndroidAssetPath);
 }
 
-static jstring GetAndroidResourcePath(JNIEnv* env, jclass /*clazz*/) {
-  // OK to release, JNI binding.
-  return ConvertUTF8ToJavaString(
-      env, android_webview::kAndroidResourcePath).Release();
+static ScopedJavaLocalRef<jstring> GetAndroidResourcePath(JNIEnv* env,
+                                                          jclass /*clazz*/) {
+  return ConvertUTF8ToJavaString(env, android_webview::kAndroidResourcePath);
 }
 
 }  // namespace android_webview