Presentation API: remove stall PresentationDispatcher::startSession().

content/renderer/presentation/presentation_dispatcher.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 "content/renderer/presentation/presentation_dispatcher.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 95 matching lines @@
 void PresentationDispatcher::updateAvailableChangeWatched(bool watched) {
   ConnectToPresentationServiceIfNeeded();
   if (watched)
     presentation_service_->ListenForScreenAvailability();
   else
     presentation_service_->StopListeningForScreenAvailability();
 }
 
 void PresentationDispatcher::startSession(
     const blink::WebString& presentationUrl,
-    const blink::WebString& presentationId,
-    blink::WebPresentationSessionClientCallbacks* callback) {
-  startSession(presentationUrl, callback);
-}
-
-void PresentationDispatcher::startSession(
-    const blink::WebString& presentationUrl,
     blink::WebPresentationSessionClientCallbacks* callback) {
   DCHECK(callback);
   ConnectToPresentationServiceIfNeeded();
 
   // The dispatcher owns the service so |this| will be valid when
   // OnSessionCreated() is called. |callback| needs to be alive and also needs
   // to be destroyed so we transfer its ownership to the mojo callback.
   presentation_service_->StartSession(
       presentationUrl.utf8(),
       base::Bind(&PresentationDispatcher::OnSessionCreated,
@@ skipping 219 matching lines @@
 
   if (listening_state_ == ListeningState::Waiting)
     listening_state_ = ListeningState::Active;
 
   for (auto observer : availability_observers_)
     observer->availabilityChanged(available);
 
   for (auto observer : availability_observers_)
     observer->availabilityChanged(available);
 
+  for (auto observer : availability_observers_)
+    observer->availabilityChanged(available);
+
   for (AvailabilityCallbacksMap::iterator iter(&availability_callbacks_);
        !iter.IsAtEnd(); iter.Advance()) {
     iter.GetCurrentValue()->onSuccess(new bool(available));
   }
   availability_callbacks_.Clear();
 
   UpdateListeningState();
 }
 
 void PresentationDispatcher::OnScreenAvailabilityNotSupported() {
@@ skipping 144 matching lines @@
   if (should_listen) {
     listening_state_ = ListeningState::Waiting;
     presentation_service_->ListenForScreenAvailability();
   } else {
     listening_state_ = ListeningState::Inactive;
     presentation_service_->StopListeningForScreenAvailability();
   }
 }
 
 }  // namespace content