[Presentation API] 1-UA presentation support + presenter APIs.

chrome/browser/media/router/incognito_presentation_service_delegate.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_INCOGNITO_PRESENTATION_SERVICE_DELEGATE_H_
+#define CHROME_BROWSER_MEDIA_ROUTER_INCOGNITO_PRESENTATION_SERVICE_DELEGATE_H_
+
+#include <map>
+
+#include "base/observer_list.h"
+#include "chrome/browser/media/router/render_frame_host_helper.h"
+#include "content/public/browser/presentation_service_delegate.h"
+#include "content/public/browser/web_contents_user_data.h"
+
+namespace content {
+class RenderFrameHost;
+class PresentationScreenAvailabilityListener;
+class WebContents;
+struct PresentationSessionInfo;
+struct PresentationSessionMessage;
+}  // namespace content
+
+namespace media_router {
+
+class MediaRoute;
+class MediaSinksObserver;
+class OneUAPresentationRouter;
+class PresentationFrameManager;
+class PresentationSessionStateObserver;
+
+// TODO(imcheng): We may be able to merge this class with PSDImpl if we decide
+// to re-enable presentation API in incognito mode with similar behavior in the
+// future.
+// PresentationServiceDelegate implementation for incognito tabs.
+// Currently, most request-type APIs are disabled, with the exception of
+// presenter APIs for 1-UA presentation, since we use an offscreen tab spawned
+// from an off-the-record profile for 1-UA mode. Messaging and state change APIs
+// are available for the 1-UA presenter session.
+// It is scoped to the lifetime of a WebContents, and is managed by the
+// associated WebContents.
+class IncognitoPresentationServiceDelegate

[whywhat, 2015/09/14 15:20:39]

Maybe this shoud be something like ReceiverPresentationServiceDelegateImpl,
Incognito/Offscreen are implementation details.

[miu, 2015/09/17 00:09:20]

FYI--Ben Kalman in recent meeting proposed we used the wording "sandboxed," so
maybe "SandboxedPresentationServiceDelegate" would be a good name?  Or,
alternatively, the incognito profile impl class is called "OffTheRecordProfile,"
so maybe "OffTheRecordPresentationServiceDelegate?"

[imcheng, 2015/09/26 01:21:57]

Will go with ReceiverPresentationServiceDelegateImpl.

[imcheng, 2015/09/26 01:21:57]

Ok, I will go with ReceiverPresentationServiceDelegateImpl for now. It looks
like we made some progress towards re-enabling MR in incognito mode, so if it
ends up working then we can probably merge the logic in this class into PSDImpl.

+    : public content::WebContentsUserData<IncognitoPresentationServiceDelegate>,
+      public content::PresentationServiceDelegate {
+ public:
+  // Retrieves the instance of IncognitoPresentationServiceDelegate that was
+  // attached
+  // to the specified WebContents.  If no instance was attached, creates one,
+  // and attaches it to the specified WebContents.
+  static IncognitoPresentationServiceDelegate* GetOrCreateForWebContents(
+      content::WebContents* web_contents);
+
+  ~IncognitoPresentationServiceDelegate() override;
+
+  // content::PresentationServiceDelegate implementation.
+  void AddObserver(
+      int render_process_id,
+      int render_frame_id,
+      content::PresentationServiceDelegate::Observer* observer) override;
+  void RemoveObserver(int render_process_id, int render_frame_id) override;
+  bool AddScreenAvailabilityListener(
+      int render_process_id,
+      int render_frame_id,
+      content::PresentationScreenAvailabilityListener* listener) override;
+  void RemoveScreenAvailabilityListener(
+      int render_process_id,
+      int render_frame_id,
+      content::PresentationScreenAvailabilityListener* listener) override;
+  void Reset(int render_process_id, int render_frame_id) override;
+  void SetDefaultPresentationUrl(
+      int render_process_id,
+      int render_frame_id,
+      const std::string& default_presentation_url) override;
+  void StartSession(int render_process_id,
+                    int render_frame_id,
+                    const std::string& presentation_url,
+                    const PresentationSessionSuccessCallback& success_cb,
+                    const PresentationSessionErrorCallback& error_cb) override;
+  void JoinSession(int render_process_id,
+                   int render_frame_id,
+                   const std::string& presentation_url,
+                   const std::string& presentation_id,
+                   const PresentationSessionSuccessCallback& success_cb,
+                   const PresentationSessionErrorCallback& error_cb) override;
+  void CloseSession(int render_process_id,
+                    int render_frame_id,
+                    const std::string& presentation_id) override;
+  void ListenForSessionMessages(
+      int render_process_id,
+      int render_frame_id,
+      const content::PresentationSessionInfo& session,
+      const content::PresentationSessionMessageCallback& message_cb) override;
+  void SendMessage(
+      int render_process_id,
+      int render_frame_id,
+      const content::PresentationSessionInfo& session,
+      scoped_ptr<content::PresentationSessionMessage> message,
+      const content::SendMessageCallback& send_message_cb) override;
+  void ListenForSessionStateChange(
+      int render_process_id,
+      int render_frame_id,
+      const content::SessionStateChangedCallback& state_changed_cb) override;
+  void GetPresenterSession(
+      int render_process_id,
+      int render_frame_id,
+      const content::PresenterSessionAvailableCallback& success_callback,
+      const base::Callback<void(const std::string&)>& error_callback) override;
+  std::vector<content::PresentationSessionInfo> GetPresenterSessions(
+      int render_process_id,
+      int render_frame_id) override;
+
+ private:
+  explicit IncognitoPresentationServiceDelegate(
+      content::WebContents* web_contents);
+  friend class content::WebContentsUserData<
+      IncognitoPresentationServiceDelegate>;
+
+  // Reference to the WebContents that owns this instance.
+  content::WebContents* const web_contents_;

[whywhat, 2015/09/14 15:20:39]

Do you think there might be a BasePresentationServiceDelegateImpl that would
hold the web_contents_ and any other common logic for example?

[imcheng, 2015/09/26 01:21:57]

It looks like the only common logic is web_contents_. So I don't think it's
worth it.

+
+  // Reference to OneUAPresentationRouter keyed off the original Profile of
+  // the incognito Profile associated with |web_contents_|.
+  OneUAPresentationRouter* const one_ua_presentation_router_;
+
+  std::map<RenderFrameHostId, content::PresentationServiceDelegate::Observer*>
+      observers_;
+
+  DISALLOW_COPY_AND_ASSIGN(IncognitoPresentationServiceDelegate);
+};
+
+}  // namespace media_router
+
+#endif  // CHROME_BROWSER_MEDIA_ROUTER_INCOGNITO_PRESENTATION_SERVICE_DELEGATE_H_