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

chrome/browser/media/router/presentation_service_delegate_impl.cc

Index: chrome/browser/media/router/presentation_service_delegate_impl.cc
diff --git a/chrome/browser/media/router/presentation_service_delegate_impl.cc b/chrome/browser/media/router/presentation_service_delegate_impl.cc
index ea2dc3ab93046a411d66b7f3566e017628a9b0e2..83e6e7868af6d5db51251f1345868bab55c33331 100644
--- a/chrome/browser/media/router/presentation_service_delegate_impl.cc
+++ b/chrome/browser/media/router/presentation_service_delegate_impl.cc
@@ -13,6 +13,7 @@
 #include "base/guid.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
+#include "chrome/browser/media/router/browser_presentation_connection_proxy.h"
 #include "chrome/browser/media/router/create_presentation_connection_request.h"
 #include "chrome/browser/media/router/media_route.h"
 #include "chrome/browser/media/router/media_router.h"
@@ -163,11 +164,16 @@ class PresentationFrame {
       const MediaRoute& route);
   void OnPresentationServiceDelegateDestroyed() const;
 
+  bool IsOffscreenPresentation(const std::string& presentation_id) const;
+  void ConnectToPresentation(
+      const content::PresentationSessionInfo& session,
+      content::PresentationConnectionPtr controller_connection_ptr,
+      content::PresentationConnectionRequest receiver_connection_request);
+
  private:
   MediaSource GetMediaSourceFromListener(
       content::PresentationScreenAvailabilityListener* listener) const;
-  base::SmallMap<std::map<std::string, MediaRoute::Id>>
-      presentation_id_to_route_id_;
+  base::SmallMap<std::map<std::string, MediaRoute>> presentation_id_to_route_;
   base::SmallMap<
       std::map<std::string, std::unique_ptr<PresentationMediaSinksObserver>>>
       url_to_sinks_observer_;
@@ -179,6 +185,9 @@ class PresentationFrame {
       MediaRoute::Id,
       std::unique_ptr<PresentationSessionMessagesObserver>>
       session_messages_observers_;
+  std::unordered_map<MediaRoute::Id,
+                     std::unique_ptr<BrowserPresentationConnectionProxy>>
+      browser_connection_proxies_;
 
   RenderFrameHostId render_frame_host_id_;
 
@@ -204,14 +213,15 @@ PresentationFrame::~PresentationFrame() {
 void PresentationFrame::OnPresentationSessionStarted(
     const content::PresentationSessionInfo& session,
     const MediaRoute& route) {
-  presentation_id_to_route_id_[session.presentation_id] =
-      route.media_route_id();
+  presentation_id_to_route_.insert(
+      std::make_pair(session.presentation_id, route));
 }
 
 const MediaRoute::Id PresentationFrame::GetRouteId(
     const std::string& presentation_id) const {
-  auto it = presentation_id_to_route_id_.find(presentation_id);
-  return it != presentation_id_to_route_id_.end() ? it->second : "";
+  auto it = presentation_id_to_route_.find(presentation_id);
+  return it != presentation_id_to_route_.end() ? it->second.media_route_id()
+                                               : "";
 }
 
 bool PresentationFrame::SetScreenAvailabilityListener(
@@ -252,23 +262,34 @@ bool PresentationFrame::HasScreenAvailabilityListenerForTest(
 }
 
 void PresentationFrame::Reset() {
-  for (const auto& pid_route_id : presentation_id_to_route_id_)
-    router_->DetachRoute(pid_route_id.second);
+  auto offscreen_presentation_manager =
+      OffscreenPresentationManagerFactory::GetOrCreateForWebContents(
+          web_contents_);
 
-  presentation_id_to_route_id_.clear();
+  for (const auto& pid_route : presentation_id_to_route_) {
+    if (IsOffscreenPresentation(pid_route.first)) {
+      offscreen_presentation_manager->UnregisterOffscreenPresentationController(
+          pid_route.first, render_frame_host_id_);
+    }
+    router_->DetachRoute(pid_route.second.media_route_id());
+  }
+
+  presentation_id_to_route_.clear();
   url_to_sinks_observer_.clear();
   connection_state_subscriptions_.clear();
   session_messages_observers_.clear();
+  browser_connection_proxies_.clear();
 }
 
 void PresentationFrame::RemoveConnection(const std::string& presentation_id,
                                          const MediaRoute::Id& route_id) {
   // Remove the presentation id mapping so a later call to Reset is a no-op.
-  presentation_id_to_route_id_.erase(presentation_id);
+  presentation_id_to_route_.erase(presentation_id);
 
   // We no longer need to observe route messages.
   session_messages_observers_.erase(route_id);
 
+  browser_connection_proxies_.erase(route_id);
   // We keep the PresentationConnectionStateChangedCallback registered with MR
   // so the MRP can tell us when terminate() completed.
 }
@@ -277,14 +298,14 @@ void PresentationFrame::ListenForConnectionStateChange(
     const content::PresentationSessionInfo& connection,
     const content::PresentationConnectionStateChangedCallback&
         state_changed_cb) {
-  auto it = presentation_id_to_route_id_.find(connection.presentation_id);
-  if (it == presentation_id_to_route_id_.end()) {
+  auto it = presentation_id_to_route_.find(connection.presentation_id);
+  if (it == presentation_id_to_route_.end()) {
     DLOG(ERROR) << __func__ << "route id not found for presentation: "
                 << connection.presentation_id;
     return;
   }
 
-  const MediaRoute::Id& route_id = it->second;
+  const MediaRoute::Id& route_id = it->second.media_route_id();
   if (connection_state_subscriptions_.find(route_id) !=
       connection_state_subscriptions_.end()) {
     DLOG(ERROR) << __func__
@@ -295,20 +316,26 @@ void PresentationFrame::ListenForConnectionStateChange(
 
   connection_state_subscriptions_.insert(std::make_pair(
       route_id, router_->AddPresentationConnectionStateChangedCallback(
-                    it->second, state_changed_cb)));
+                    route_id, state_changed_cb)));
 }
 
 void PresentationFrame::ListenForSessionMessages(
     const content::PresentationSessionInfo& session,
     const content::PresentationConnectionMessageCallback& message_cb) {
-  auto it = presentation_id_to_route_id_.find(session.presentation_id);
-  if (it == presentation_id_to_route_id_.end()) {
+  auto it = presentation_id_to_route_.find(session.presentation_id);
+  if (it == presentation_id_to_route_.end()) {
     DVLOG(2) << "ListenForSessionMessages: no route for "
              << session.presentation_id;
     return;
   }
 
-  const MediaRoute::Id& route_id = it->second;
+  if (it->second.is_offscreen_presentation()) {
+    DVLOG(2) << "ListenForSessionMessages: do not listen for offscreen "
+             << "presentation [id]: " << session.presentation_id;
+    return;
+  }
+
+  const MediaRoute::Id& route_id = it->second.media_route_id();
   if (session_messages_observers_.find(route_id) !=
       session_messages_observers_.end()) {
     DLOG(ERROR) << __func__
@@ -319,7 +346,7 @@ void PresentationFrame::ListenForSessionMessages(
 
   session_messages_observers_.insert(std::make_pair(
       route_id, base::MakeUnique<PresentationSessionMessagesObserver>(
-          router_, it->second, message_cb)));
+                    router_, route_id, message_cb)));
 }
 
 MediaSource PresentationFrame::GetMediaSourceFromListener(
@@ -330,6 +357,52 @@ MediaSource PresentationFrame::GetMediaSourceFromListener(
              : MediaSourceForPresentationUrl(listener->GetAvailabilityUrl());
 }
 
+bool PresentationFrame::IsOffscreenPresentation(
+    const std::string& presentation_id) const {
+  const auto it = presentation_id_to_route_.find(presentation_id);
+  if (it == presentation_id_to_route_.end()) {
+    DLOG(WARNING) << "No route for [presentation_id]: " << presentation_id;
+    return false;
+  }
+
+  return it->second.is_offscreen_presentation();
+}
+
+void PresentationFrame::ConnectToPresentation(
+    const content::PresentationSessionInfo& session,
+    content::PresentationConnectionPtr controller_connection_ptr,
+    content::PresentationConnectionRequest receiver_connection_request) {
+  const auto pid_route_it =
+      presentation_id_to_route_.find(session.presentation_id);
+
+  if (pid_route_it == presentation_id_to_route_.end()) {
+    DLOG(WARNING) << "No route for [presentation_id]: "
+                  << session.presentation_id;
+    return;
+  }
+
+  if (IsOffscreenPresentation(session.presentation_id)) {
+    auto* const offscreen_presentation_manager =
+        OffscreenPresentationManagerFactory::GetOrCreateForWebContents(
+            web_contents_);
+    offscreen_presentation_manager->RegisterOffscreenPresentationController(
+        session.presentation_id, session.presentation_url,
+        render_frame_host_id_, std::move(controller_connection_ptr),
+        std::move(receiver_connection_request));
+  } else {
+    DVLOG(2)
+        << "Creating BrowserPresentationConnectionProxy for [presentation_id]: "
+        << session.presentation_id;
+    MediaRoute::Id route_id = pid_route_it->second.media_route_id();
+    auto* proxy = new BrowserPresentationConnectionProxy(
+        router_, route_id, std::move(receiver_connection_request),
+        std::move(controller_connection_ptr));
+
+    browser_connection_proxies_.insert(
+        std::make_pair(route_id, base::WrapUnique(proxy)));
+  }
+}
+
 // Used by PresentationServiceDelegateImpl to manage PresentationFrames.
 class PresentationFrameManager {
  public:
@@ -388,6 +461,12 @@ class PresentationFrameManager {
       const content::PresentationSessionInfo& session,
       const MediaRoute& route);
 
+  void ConnectToPresentation(
+      const RenderFrameHostId& render_frame_host_id,
+      const content::PresentationSessionInfo& session,
+      content::PresentationConnectionPtr controller_connection_ptr,
+      content::PresentationConnectionRequest receiver_connection_request);
+
   const MediaRoute::Id GetRouteId(const RenderFrameHostId& render_frame_host_id,
                                   const std::string& presentation_id) const;
 
@@ -465,6 +544,17 @@ void PresentationFrameManager::OnDefaultPresentationSessionStarted(
   }
 }
 
+void PresentationFrameManager::ConnectToPresentation(
+    const RenderFrameHostId& render_frame_host_id,
+    const content::PresentationSessionInfo& session,
+    content::PresentationConnectionPtr controller_connection_ptr,
+    content::PresentationConnectionRequest receiver_connection_request) {
+  auto* presentation_frame = GetOrAddPresentationFrame(render_frame_host_id);
+  presentation_frame->ConnectToPresentation(
+      session, std::move(controller_connection_ptr),
+      std::move(receiver_connection_request));
+}
+
 const MediaRoute::Id PresentationFrameManager::GetRouteId(
     const RenderFrameHostId& render_frame_host_id,
     const std::string& presentation_id) const {
@@ -892,20 +982,16 @@ void PresentationServiceDelegateImpl::ListenForConnectionStateChange(
       state_changed_cb);
 }
 
-void PresentationServiceDelegateImpl::ConnectToOffscreenPresentation(
+void PresentationServiceDelegateImpl::ConnectToPresentation(
     int render_process_id,
     int render_frame_id,
     const content::PresentationSessionInfo& session,
     content::PresentationConnectionPtr controller_connection_ptr,
     content::PresentationConnectionRequest receiver_connection_request) {
   RenderFrameHostId render_frame_host_id(render_process_id, render_frame_id);
-  auto* const offscreen_presentation_manager =
-      OffscreenPresentationManagerFactory::GetOrCreateForWebContents(
-          web_contents_);
-  offscreen_presentation_manager->RegisterOffscreenPresentationController(
-      session.presentation_id, session.presentation_url, render_frame_host_id,
-      std::move(controller_connection_ptr),
-      std::move(receiver_connection_request));
+  frame_manager_->ConnectToPresentation(render_frame_host_id, session,
+                                        std::move(controller_connection_ptr),
+                                        std::move(receiver_connection_request));
 }
 
 void PresentationServiceDelegateImpl::OnRouteResponse(