Adding an experimental app notification API.

chrome/browser/extensions/extension_app_api.h

Index: chrome/browser/extensions/extension_app_api.h
diff --git a/chrome/browser/extensions/extension_app_api.h b/chrome/browser/extensions/extension_app_api.h
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+++ b/chrome/browser/extensions/extension_app_api.h
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+// Copyright (c) 2011 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_EXTENSIONS_EXTENSION_APP_API_H__
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_APP_API_H__
+#pragma once
+
+#include "chrome/browser/extensions/extension_function.h"
+
+#include <map>
+#include <vector>
+
+#include "base/memory/linked_ptr.h"
+#include "content/common/notification_observer.h"
+#include "content/common/notification_registrar.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+
+struct AppNotification {
+  AppNotification();
+  ~AppNotification();
+
+  std::string extension_id;
+  std::string title;
+  std::string body;
+  GURL linkUrl;
+  std::string linkText;
+  SkBitmap icon;
+};
+
+// A list of AppNotification's.
+typedef std::vector<linked_ptr<AppNotification> > AppNotificationList;
+
+// This class keeps track of notifications for installed apps.
+class AppNotificationManager : public NotificationObserver {
+ public:
+  AppNotificationManager();
+  virtual ~AppNotificationManager();
+
+  // Takes ownership of |notification|.
+  void Add(AppNotification* item);
+
+  const AppNotificationList* GetAll(const std::string& extension_id);
+
+  // Returns the most recently added notification for |extension_id| if there
+  // are any, or NULL otherwise.
+  const AppNotification* GetLast(const std::string& extension_id);
+
+  // Clears all notifications for |extension_id|.
+  void ClearAll(const std::string& extension_id);
+
+  // Implementing NotificationObserver interface.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) OVERRIDE;
+
+ private:
+  // Maps extension id to a list of notifications for that extension.
+  typedef std::map<std::string, AppNotificationList> NotificationMap;
+
+  NotificationRegistrar registrar_;
+  NotificationMap notifications_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppNotificationManager);
+};
+
+class AppNotifyFunction : public SyncExtensionFunction {
+  virtual ~AppNotifyFunction() {}
+  virtual bool RunImpl();
+  DECLARE_EXTENSION_FUNCTION_NAME("experimental.app.notify");
+};
+
+class AppClearAllNotificationsFunction : public SyncExtensionFunction {
+  virtual ~AppClearAllNotificationsFunction() {}
+  virtual bool RunImpl();
+  DECLARE_EXTENSION_FUNCTION_NAME("experimental.app.clearAllNotifications");
+};
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_APP_API_H__