Refactor VirtualLightRefBase & JNI

Change-Id: I8e244e7109e59d5be96871b23bb9b1201c7f9eaa
diff --git a/core/jni/com_android_internal_util_VirtualRefBasePtr.cpp b/core/jni/com_android_internal_util_VirtualRefBasePtr.cpp
new file mode 100644
index 0000000..ce6f207
--- /dev/null
+++ b/core/jni/com_android_internal_util_VirtualRefBasePtr.cpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "jni.h"
+#include <nativehelper/JNIHelp.h>
+#include <android_runtime/AndroidRuntime.h>
+
+namespace android {
+
+static void incStrong(JNIEnv* env, jobject clazz, jlong objPtr) {
+    VirtualLightRefBase* obj = reinterpret_cast<VirtualLightRefBase*>(objPtr);
+    obj->incStrong(0);
+}
+
+static void decStrong(JNIEnv* env, jobject clazz, jlong objPtr) {
+    VirtualLightRefBase* obj = reinterpret_cast<VirtualLightRefBase*>(objPtr);
+    obj->decStrong(0);
+}
+
+// ----------------------------------------------------------------------------
+// JNI Glue
+// ----------------------------------------------------------------------------
+
+const char* const kClassPathName = "com/android/internal/util/VirtualRefBasePtr";
+
+static JNINativeMethod gMethods[] = {
+    { "nIncStrong", "(J)V", (void*) incStrong },
+    { "nDecStrong", "(J)V", (void*) decStrong },
+};
+
+int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv* env) {
+    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
+}
+
+
+} // namespace android