[Android] Java Bridge with Gin: implement Java methods invocation

content/browser/renderer_host/java/gin_java_bound_object.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_BROWSER_RENDERER_HOST_JAVA_GIN_JAVA_BOUND_OBJECT_H_
+#define CONTENT_BROWSER_RENDERER_HOST_JAVA_GIN_JAVA_BOUND_OBJECT_H_
+
+#include "base/id_map.h"
+#include "base/memory/ref_counted.h"
+
+namespace content {
+
+class GinJavaBoundObject
+    : public base::RefCountedThreadSafe<GinJavaBoundObject> {
+ public:
+  typedef IDMap<scoped_refptr<GinJavaBoundObject>, IDMapOwnPointer> ObjectMap;
+  typedef ObjectMap::KeyType ObjectID;
+
+ private:
+  friend class base::RefCountedThreadSafe<GinJavaBoundObject>;
+  GinJavaBoundObject() {}
+  ~GinJavaBoundObject() {}
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_JAVA_GIN_JAVA_BOUND_OBJECT_H_