Move MessagePort implementation from android_webview to content

content/public/browser/android/app_web_message_port_service.h

Index: content/public/browser/android/app_web_message_port_service.h
diff --git a/content/public/browser/android/app_web_message_port_service.h b/content/public/browser/android/app_web_message_port_service.h
new file mode 100644
index 0000000000000000000000000000000000000000..d8dbe59e56185632c7a8def53d597b1640705ac2
--- /dev/null
+++ b/content/public/browser/android/app_web_message_port_service.h
@@ -0,0 +1,36 @@
+// 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/values.h"
+
+
+namespace content {
+class WebContents;
+
+// The interface for AppWebMessagePortService
+class AppWebMessagePortService  {
+ public:
+  virtual ~AppWebMessagePortService() { }
+
+  virtual void CreateMessageChannel(
+      JNIEnv* env, jobjectArray ports, WebContents* web_contents) = 0;
+  virtual void OnConvertedWebToAppMessage(

[sgurun-gerrit only, 2016/09/30 23:40:59]

no need to be in public interface?

[Yusuf, 2016/10/04 21:33:14]

Done.

+      int message_port_id,
+      const base::ListValue& message,
+      const std::vector<int>& sent_message_port_ids) = 0;
+
+  virtual void CleanupPort(int message_port_id) = 0;

[sgurun-gerrit only, 2016/09/30 23:40:59]

I don't think you need this in public interface anymore

[Yusuf, 2016/10/04 21:33:14]

Done.

+
+  virtual void RemoveSentPorts(const std::vector<int>& sent_ports) = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_ANDROID_APP_WEB_MESSAGE_PORT_SERVICE_H_