HTML MessagePort as mojo::MessagePipeHandle

content/public/browser/android/app_web_message_port_service.h

 // Copyright 2015 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_PUBLIC_BROWSER_ANDROID_APP_WEB_MESSAGE_PORT_SERVICE_H_
 #define CONTENT_PUBLIC_BROWSER_ANDROID_APP_WEB_MESSAGE_PORT_SERVICE_H_
 
 #include <jni.h>
 #include <vector>
 
 #include "base/android/scoped_java_ref.h"
 #include "base/values.h"
+#include "content/common/content_export.h"
 
 namespace content {
+class MessagePort;
 class WebContents;
 
 // The interface for AppWebMessagePortService
-class AppWebMessagePortService {
+class CONTENT_EXPORT AppWebMessagePortService {

[sgurun-gerrit only, 2017/01/27 01:16:38]

please drop this class and move UnwrapJavaArray and CreateMessageChannel to
web_contents_android.cc

  public:
   virtual ~AppWebMessagePortService() {}
 
   virtual void CreateMessageChannel(
       JNIEnv* env,
       const base::android::JavaRef<jobjectArray>& ports,
       WebContents* web_contents) = 0;
 
-  virtual void CleanupPort(int message_port_id) = 0;
+  static std::vector<MessagePort> UnwrapJavaArray(
+      JNIEnv* env,
+      const base::android::JavaRef<jobjectArray>& ports);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_ANDROID_APP_WEB_MESSAGE_PORT_SERVICE_H_