Create network change notifier.

talk/app/webrtc/java/jni/androidnetworkmonitor_jni.h

 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
  *     this list of conditions and the following disclaimer in the documentation
  *     and/or other materials provided with the distribution.
  *  3. The name of the author may not be used to endorse or promote products
  *     derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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-#ifndef TALK_APP_WEBRTC_JAVA_JNI_ANDROIDMEDIADECODER_JNI_H_
-#define TALK_APP_WEBRTC_JAVA_JNI_ANDROIDMEDIADECODER_JNI_H_
+#ifndef TALK_APP_WEBRTC_JAVA_JNI_ANDROIDNETWORKMONITOR_JNI_H_
+#define TALK_APP_WEBRTC_JAVA_JNI_ANDROIDNETWORKMONITOR_JNI_H_
 
+#include "webrtc/base/networkmonitor.h"
+
+#include "webrtc/base/thread_checker.h"
 #include "talk/app/webrtc/java/jni/jni_helpers.h"
-#include "talk/media/webrtc/webrtcvideodecoderfactory.h"
 
 namespace webrtc_jni {
 
-// Implementation of Android MediaCodec based decoder factory.
-class MediaCodecVideoDecoderFactory
-    : public cricket::WebRtcVideoDecoderFactory {
+class AndroidNetworkMonitor : public rtc::NetworkMonitorBase {
  public:
-  MediaCodecVideoDecoderFactory();
-  virtual ~MediaCodecVideoDecoderFactory();
+  AndroidNetworkMonitor();
 
-  void SetEGLContext(JNIEnv* jni, jobject render_egl_context);
+  static void SetAndroidContext(JNIEnv* jni, jobject context);
 
-  // WebRtcVideoDecoderFactory implementation.
-  webrtc::VideoDecoder* CreateVideoDecoder(webrtc::VideoCodecType type)
-      override;
-
-  void DestroyVideoDecoder(webrtc::VideoDecoder* decoder) override;
+  void Start() override;
+  void Stop() override;
 
  private:
-  jobject render_egl_context_; // Render EGL context.
-  std::vector<webrtc::VideoCodecType> supported_codec_types_;
+  JNIEnv* jni() { return AttachCurrentThreadIfNeeded(); }
+
+  ScopedGlobalRef<jclass> j_network_monitor_class_;
+  ScopedGlobalRef<jobject> j_network_monitor_;
+  rtc::ThreadChecker thread_checker_;
+  static jobject application_context_;
+};
+
+class AndroidNetworkMonitorFactory : public rtc::NetworkMonitorFactory {
+ public:
+  AndroidNetworkMonitorFactory() {}
+
+  rtc::NetworkMonitorInterface* CreateNetworkMonitor() override {
+    return new AndroidNetworkMonitor();
+  }
 };
 
 }  // namespace webrtc_jni
 
-#endif  // TALK_APP_WEBRTC_JAVA_JNI_ANDROIDMEDIADECODER_JNI_H_
+#endif  // TALK_APP_WEBRTC_JAVA_JNI_ANDROIDNETWORKMONITOR_JNI_H_