[Presentation API] Change connection to 'connected' if start a presentation with "https://www.googl…

third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp

 // 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 "modules/presentation/PresentationReceiver.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
+#include "core/frame/Navigator.h"
 #include "core/frame/UseCounter.h"
+#include "modules/presentation/NavigatorPresentation.h"
+#include "modules/presentation/Presentation.h"
 #include "modules/presentation/PresentationConnection.h"
 #include "modules/presentation/PresentationConnectionList.h"
 #include "public/platform/modules/presentation/WebPresentationClient.h"
 
 namespace blink {
 
 PresentationReceiver::PresentationReceiver(LocalFrame* frame,
                                            WebPresentationClient* client)
     : ContextClient(frame) {
   RecordOriginTypeAccess(frame->GetDocument());
   connection_list_ = new PresentationConnectionList(frame->GetDocument());
 
   if (client)
     client->SetReceiver(this);
 }
 
+// static
+PresentationReceiver* PresentationReceiver::From(Document& document) {
+  if (!document.GetFrame() || !document.GetFrame()->DomWindow())
+    return nullptr;
+  Navigator& navigator = *document.GetFrame()->DomWindow()->navigator();
+  Presentation* presentation = NavigatorPresentation::presentation(navigator);
+  if (!presentation)
+    return nullptr;
+
+  return presentation->receiver();
+}
+
 ScriptPromise PresentationReceiver::connectionList(ScriptState* script_state) {
   if (!connection_list_property_)
     connection_list_property_ =
         new ConnectionListProperty(script_state->GetExecutionContext(), this,
                                    ConnectionListProperty::kReady);
 
   if (!connection_list_->IsEmpty() && connection_list_property_->GetState() ==
                                           ScriptPromisePropertyBase::kPending)
     connection_list_property_->Resolve(connection_list_);
 
@@ skipping 58 matching lines @@
   }
 }
 
 DEFINE_TRACE(PresentationReceiver) {
   visitor->Trace(connection_list_);
   visitor->Trace(connection_list_property_);
   ContextClient::Trace(visitor);
 }
 
 }  // namespace blink