jni_generator: Make all object-returning natives return ScopedJavaLocalRef.

net/android/gurl_utils.cc

Index: net/android/gurl_utils.cc
diff --git a/net/android/gurl_utils.cc b/net/android/gurl_utils.cc
index c8cb1e4e9981bc51bee260cfad18e70076f0b72b..8fcfe0d4f7486e1986c2d23e4625ba23606cd03e 100644
--- a/net/android/gurl_utils.cc
+++ b/net/android/gurl_utils.cc
@@ -10,18 +10,16 @@
 
 namespace net {
 
-jstring GetOrigin(JNIEnv* env, jclass clazz, jstring url) {
+ScopedJavaLocalRef<jstring> GetOrigin(JNIEnv* env, jclass clazz, jstring url) {
   GURL host(base::android::ConvertJavaStringToUTF16(env, url));
 
-  return base::android::ConvertUTF8ToJavaString(env,
-      host.GetOrigin().spec()).Release();
+  return base::android::ConvertUTF8ToJavaString(env, host.GetOrigin().spec());
 }
 
-jstring GetScheme(JNIEnv* env, jclass clazz, jstring url) {
+ScopedJavaLocalRef<jstring> GetScheme(JNIEnv* env, jclass clazz, jstring url) {
   GURL host(base::android::ConvertJavaStringToUTF16(env, url));
 
-  return base::android::ConvertUTF8ToJavaString(env,
-      host.scheme()).Release();
+  return base::android::ConvertUTF8ToJavaString(env, host.scheme());
 }
 
 bool RegisterGURLUtils(JNIEnv* env) {