Push API: test that default notification is shown on Android when needed.

chrome/browser/push_messaging/push_messaging_service_observer_android.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 CHROME_BROWSER_PUSH_MESSAGING_PUSH_MESSAGING_SERVICE_OBSERVER_ANDROID_H_
+#define CHROME_BROWSER_PUSH_MESSAGING_PUSH_MESSAGING_SERVICE_OBSERVER_ANDROID_H_
+
+#include "chrome/browser/push_messaging/push_messaging_service_observer.h"
+
+#include <jni.h>
+
+#include "base/macros.h"
+
+class PushMessagingServiceObserverAndroid

[Peter Beverloo, 2015/12/10 18:47:52]

// Observer for the PushMessagingService to be used on Android for forwarding
// message delivered events to listeners in Java.

[Michael van Ouwerkerk, 2015/12/11 11:23:54]

Done.

+    : public PushMessagingServiceObserver {
+ public:
+  static bool RegisterJni(JNIEnv* env);
+  void OnMessageHandled() override;

[Peter Beverloo, 2015/12/10 18:47:52]

nit: // PushMessagingServiceObserver implementation.

[Michael van Ouwerkerk, 2015/12/11 11:23:54]

Done.

+
+ private:
+  friend class PushMessagingServiceObserver;
+  PushMessagingServiceObserverAndroid() {}
+
+  DISALLOW_COPY_AND_ASSIGN(PushMessagingServiceObserverAndroid);
+};
+
+#endif  // CHROME_BROWSER_PUSH_MESSAGING_PUSH_MESSAGING_SERVICE_OBSERVER_ANDROID_H_