arc-bridge: Move most methods to Mojo interfaces

components/arc/common/notifications.mojom

+// 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.
+
+module arc;
+
+// These values must be matched with the NOTIFICATION_EVENT_* constants in
+// com.android.server.ArcNotificationListenerService.
+enum ArcNotificationEvent {
+  BODY_CLICKED = 0,
+  CLOSED = 1,
+  // Five buttons at maximum (message_center::kNotificationMaximumItems = 5).
+  BUTTON1_CLICKED = 2,
+  BUTTON2_CLICKED = 3,
+  BUTTON3_CLICKED = 4,
+  BUTTON4_CLICKED = 5,
+  BUTTON5_CLICKED = 6,
+};
+
+// These values must be matched with the NOTIFICATION_TYPE_* constants in
+// com.android.server.ArcNotificationListenerService.
+enum ArcNotificationType {
+  BASIC = 0,
+  IMAGE = 1,
+  PROGRESS = 2,
+};
+
+struct ArcNotificationData {
+  // Identifier of notification
+  string key;
+  // Type of notification
+  ArcNotificationType type;
+  // Body message of notification
+  string message;
+  // Title of notification
+  string title;
+  // Mimetype of |icon_data|
+  string icon_mimetype;
+  // Binary data of the icon
+  array<uint8> icon_data;
+  // Priority of notification, must be [2,-2]
+  int32 priority;
+  // Timestamp related to the notification
+  int64 time;
+  // The current value of progress, must be [0, progress_max].
+  int32 progress_current;
+  // The maximum value of progress.
+  int32 progress_max;
+};
+
+interface NotificationsHost {
+  // Tells the Chrome that a notification is posted (created or updated) on
+  // Android.
+  // |notification_data| is the data of notification (id, texts, icon and ...).
+  OnNotificationPosted(ArcNotificationData notification_data);
+
+  // Notifies that a notification is removed on Android.
+  // |key| is the identifier of the notification.
+  OnNotificationRemoved(string key);
+};
+
+// TODO(lhchavez): Migrate all request/response messages to Mojo.
+interface NotificationsInstance {
+  // Establishes full-duplex communication with the host.
+  Init(NotificationsHost host_ptr);
+
+  // Sends an event from Chrome notification UI to Android.
+  // |event| is a type of occured event.
+  SendNotificationEventToAndroid(string key, ArcNotificationEvent event);
+};