[Presentation API] (MR side) 1-UA: notify receiver page when receiver connection becomes available

chrome/browser/media/router/offscreen_presentation_manager_factory.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_MEDIA_ROUTER_OFFSCREEN_PRESENTATION_MANAGER_FACTORY_H_
+#define CHROME_BROWSER_MEDIA_ROUTER_OFFSCREEN_PRESENTATION_MANAGER_FACTORY_H_
+
+#include "base/lazy_instance.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+
+namespace content {
+class BrowserContext;
+}
+
+namespace media_router {
+
+class OffscreenPresentationManager;
+
+class OffscreenPresentationManagerFactory

[imcheng, 2016/09/28 07:28:36]

Please add a comment here that OffscreenPresentation manager is shared between a
Profile and its associated incognito Profiles.

[zhaobin, 2016/09/29 17:20:43]

Done.

+    : public BrowserContextKeyedServiceFactory {
+ public:
+  static OffscreenPresentationManager* GetOrCreateForBrowserContext(
+      content::BrowserContext*);

[imcheng, 2016/09/28 07:28:36]

nit: Please add parameter names here and below

[zhaobin, 2016/09/29 17:20:43]

Done.

+
+ private:
+  friend struct base::DefaultLazyInstanceTraits<
+      OffscreenPresentationManagerFactory>;
+
+  OffscreenPresentationManagerFactory();
+  ~OffscreenPresentationManagerFactory() override;
+
+  // BrowserContextKeyedServiceFactory interface.
+  content::BrowserContext* GetBrowserContextToUse(
+      content::BrowserContext*) const override;
+  KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext*) const override;
+
+  DISALLOW_COPY_AND_ASSIGN(OffscreenPresentationManagerFactory);
+};
+
+}  // namespace media_router
+
+#endif  // CHROME_BROWSER_MEDIA_ROUTER_OFFSCREEN_PRESENTATION_MANAGER_FACTORY_H_