[remoting android] Remove host It2Me implementation.

remoting/host/android/jni_host.h

-// Copyright 2016 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 REMOTING_HOST_ANDROID_JNI_HOST_H_
-#define REMOTING_HOST_ANDROID_JNI_HOST_H_
-
-#include <jni.h>
-
-#include <memory>
-
-#include "base/android/scoped_java_ref.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "remoting/host/it2me/it2me_host.h"
-
-namespace remoting {
-
-class ChromotingHostContext;
-class It2MeHostFactory;
-
-class JniHost : public It2MeHost::Observer {
- public:
-  JniHost(JNIEnv* env, jobject java_host);
-  virtual ~JniHost();
-
-  // Register C++ methods exposed to Java using JNI.
-  static bool RegisterJni(JNIEnv* env);
-
-  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& caller);
-
-  void Connect(JNIEnv* env,
-               const base::android::JavaParamRef<jobject>& caller,
-               const base::android::JavaParamRef<jstring>& user_name,
-               const base::android::JavaParamRef<jstring>& auth_token);
-
-  void Disconnect(JNIEnv* env,
-                  const base::android::JavaParamRef<jobject>& caller);
-
-  // It2MeHost::Observer implementation.
-  void OnClientAuthenticated(const std::string& client_username) override;
-  void OnStoreAccessCode(const std::string& access_code,
-                         base::TimeDelta access_code_lifetime) override;
-  void OnNatPolicyChanged(bool nat_traversal_enabled) override;
-  void OnStateChanged(It2MeHostState state,
-                      const std::string& error_message) override;
-
- private:
-  base::android::ScopedJavaGlobalRef<jobject> java_host_;
-
-  std::unique_ptr<base::MessageLoopForUI> ui_loop_;
-  std::unique_ptr<ChromotingHostContext> host_context_;
-  std::unique_ptr<It2MeHostFactory> factory_;
-  scoped_refptr<It2MeHost> it2me_host_;
-
-  // IT2Me Talk server configuration used by |it2me_host_| to connect.
-  XmppSignalStrategy::XmppServerConfig xmpp_server_config_;
-
-  base::WeakPtr<JniHost> weak_ptr_;
-  base::WeakPtrFactory<JniHost> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(JniHost);
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_HOST_ANDROID_JNI_HOST_H_