[Android] Java Bridge with Gin: implement Java bound object

content/browser/renderer_host/java/gin_java_method_invocation_helper.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_METHOD_INVOCATION_HELPER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_JAVA_GIN_JAVA_METHOD_INVOCATION_HELPER_H_
 
 #include <map>
 
 #include "base/android/jni_weak_ref.h"
@@ skipping 26 matching lines @@
     DISALLOW_COPY_AND_ASSIGN(DispatcherDelegate);
   };
 
   // ObjectDelegate is used in the background thread
   class ObjectDelegate {
    public:
     ObjectDelegate() {}
     virtual ~ObjectDelegate() {}
     virtual base::android::ScopedJavaLocalRef<jobject> GetLocalRef(
         JNIEnv* env) = 0;
+    virtual base::android::ScopedJavaLocalRef<jclass> GetLocalClassRef(
+        JNIEnv* env) = 0;
     virtual const JavaMethod* FindMethod(const std::string& method_name,
                                          size_t num_parameters) = 0;
     virtual bool IsObjectGetClassMethod(const JavaMethod* method) = 0;
     virtual const base::android::JavaRef<jclass>& GetSafeAnnotationClass() = 0;
 
    private:
     DISALLOW_COPY_AND_ASSIGN(ObjectDelegate);
   };
 
   GinJavaMethodInvocationHelper(scoped_ptr<ObjectDelegate> object,
@@ skipping 19 matching lines @@
   void BuildObjectRefsFromListValue(DispatcherDelegate* dispatcher,
                                     const base::Value* list_value);
   void BuildObjectRefsFromDictionaryValue(DispatcherDelegate* dispatcher,
                                           const base::Value* dict_value);
 
   bool AppendObjectRef(DispatcherDelegate* dispatcher,
                        const base::Value* raw_value);
 
   // Called on the background thread.
   void InvokeMethod(jobject object,
+                    jclass clazz,
                     const JavaType& return_type,
                     jmethodID id,
                     jvalue* parameters);
   void SetInvocationFailure(const char* error_message);
   void SetPrimitiveResult(const base::ListValue& result_wrapper);
   void SetObjectResult(
       const base::android::JavaRef<jobject>& object,
       const base::android::JavaRef<jclass>& safe_annotation_clazz);
 
   typedef std::map<GinJavaBoundObject::ObjectID,
                    JavaObjectWeakGlobalRef> ObjectRefs;
 
   scoped_ptr<ObjectDelegate> object_;
   const std::string method_name_;
   scoped_ptr<base::ListValue> arguments_;
   ObjectRefs object_refs_;
   bool holds_primitive_result_;
   scoped_ptr<base::ListValue> primitive_result_;
   std::string error_message_;
   base::android::ScopedJavaGlobalRef<jobject> object_result_;
   base::android::ScopedJavaGlobalRef<jclass> safe_annotation_clazz_;
 
   DISALLOW_COPY_AND_ASSIGN(GinJavaMethodInvocationHelper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_JAVA_GIN_JAVA_METHOD_INVOCATION_HELPER_H_