jni: Pass method parameters as JavaParamRef in content.

content/browser/mojo/service_registry_android.cc

Index: content/browser/mojo/service_registry_android.cc
diff --git a/content/browser/mojo/service_registry_android.cc b/content/browser/mojo/service_registry_android.cc
index d2187a3a3de49cd7c423a81700c2b101fdbbe582..7978cff7ae4bdc1e2f392e22ef3d722c654d572c 100644
--- a/content/browser/mojo/service_registry_android.cc
+++ b/content/browser/mojo/service_registry_android.cc
@@ -57,11 +57,12 @@ ServiceRegistryAndroid::~ServiceRegistryAndroid() {
 }
 
 // Methods called from Java.
-void ServiceRegistryAndroid::AddService(JNIEnv* env,
-                                        jobject j_service_registry,
-                                        jobject j_manager,
-                                        jobject j_factory,
-                                        jstring j_name) {
+void ServiceRegistryAndroid::AddService(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& j_service_registry,
+    const JavaParamRef<jobject>& j_manager,
+    const JavaParamRef<jobject>& j_factory,
+    const JavaParamRef<jstring>& j_name) {
   std::string name(ConvertJavaStringToUTF8(env, j_name));
 
   ScopedJavaGlobalRef<jobject> j_scoped_service_registry;
@@ -79,17 +80,19 @@ void ServiceRegistryAndroid::AddService(JNIEnv* env,
                                     j_scoped_manager, j_scoped_factory));
 }
 
-void ServiceRegistryAndroid::RemoveService(JNIEnv* env,
-                                           jobject j_service_registry,
-                                           jstring j_name) {
+void ServiceRegistryAndroid::RemoveService(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& j_service_registry,
+    const JavaParamRef<jstring>& j_name) {
   std::string name(ConvertJavaStringToUTF8(env, j_name));
   service_registry_->Remove(name);
 }
 
-void ServiceRegistryAndroid::ConnectToRemoteService(JNIEnv* env,
-                                                    jobject j_service_registry,
-                                                    jstring j_name,
-                                                    jint j_handle) {
+void ServiceRegistryAndroid::ConnectToRemoteService(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& j_service_registry,
+    const JavaParamRef<jstring>& j_name,
+    jint j_handle) {
   std::string name(ConvertJavaStringToUTF8(env, j_name));
   mojo::ScopedMessagePipeHandle handle((mojo::MessagePipeHandle(j_handle)));
   service_registry_->Connect(name, std::move(handle));