[Presentation API] (5th) (1-UA) integrate controller and receiver side for 1-UA messaging

chrome/browser/extensions/api/tab_capture/offscreen_tab.cc

 // 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.
 
 #include "chrome/browser/extensions/api/tab_capture/offscreen_tab.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/extensions/api/tab_capture/tab_capture_registry.h"
+#include "chrome/browser/media/router/receiver_presentation_service_delegate_impl.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/web_contents_sizer.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/web_preferences.h"
 #include "extensions/browser/extension_host.h"
 #include "extensions/browser/process_manager.h"
 
 using content::WebContents;
@@ skipping 87 matching lines @@
 
   // Set initial size, if specified.
   if (!initial_size.IsEmpty())
     ResizeWebContents(offscreen_tab_web_contents_.get(),
                       gfx::Rect(initial_size));
 
   // Mute audio output.  When tab capture starts, the audio will be
   // automatically unmuted, but will be captured into the MediaStream.
   offscreen_tab_web_contents_->SetAudioMuted(true);
 
-  // TODO(imcheng): If |optional_presentation_id| is not empty, register it with
-  // the PresentationRouter.  http://crbug.com/513859
   if (!optional_presentation_id.empty()) {
-    NOTIMPLEMENTED()
-        << "Register with PresentationRouter, id=" << optional_presentation_id;
+    DVLOG(1) << " Register with ReceiverPresentationServiceDelegateImpl, "
+             << "[presentation_id]: " << optional_presentation_id;
+    // Create a ReceiverPSDImpl associated with the offscreen tab's WebContents.
+    // The new instance will set up the necessary infrastructure to allow
+    // controlling peers the ability to connect to the offscreen tab.
+    media_router::ReceiverPresentationServiceDelegateImpl::CreateForWebContents(
+        offscreen_tab_web_contents_.get(), optional_presentation_id);
 
     if (auto* render_view_host =
             offscreen_tab_web_contents_->GetRenderViewHost()) {
       auto web_prefs = render_view_host->GetWebkitPreferences();
       web_prefs.presentation_receiver = true;
       render_view_host->UpdateWebkitPreferences(web_prefs);
     }
   }
 
   // Navigate to the initial URL.
@@ skipping 238 matching lines @@
 
   // Schedule the timer to check again in a second.
   capture_poll_timer_.Start(
       FROM_HERE,
       base::TimeDelta::FromSeconds(kPollIntervalInSeconds),
       base::Bind(&OffscreenTab::DieIfContentCaptureEnded,
                  base::Unretained(this)));
 }
 
 }  // namespace extensions