Added plumbing for the availablechange event from Blink to WebPresentationClient.

Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 132 matching lines @@
 #include "core/rendering/RenderBox.h"
 #include "core/rendering/RenderFrame.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/RenderTreeAsText.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/style/StyleInheritedData.h"
 #include "core/timing/Performance.h"
 #include "modules/geolocation/GeolocationController.h"
 #include "modules/notifications/NotificationPermissionClient.h"
+#include "modules/presentation/PresentationController.h"
 #include "modules/push_messaging/PushController.h"
 #include "modules/screen_orientation/ScreenOrientationController.h"
 #include "modules/speech/SpeechRecognitionController.h"
 #include "platform/ScriptForbiddenScope.h"
 #include "platform/TraceEvent.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/clipboard/ClipboardUtilities.h"
 #include "platform/fonts/FontCache.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsLayerClient.h"
@@ skipping 1448 matching lines @@
         provideMIDITo(*m_frame, MIDIClientProxy::create(m_client ? m_client->webMIDIClient() : nullptr));
         provideLocalFileSystemTo(*m_frame, LocalFileSystemClient::create());
         // FIXME: using WebViewClient as a temporary measure if there is no client on the WebFrame.
         if (m_client && m_client->speechRecognizer())
             SpeechRecognitionController::provideTo(*m_frame, SpeechRecognitionClientProxy::create(m_client->speechRecognizer()));
         else
             SpeechRecognitionController::provideTo(*m_frame, SpeechRecognitionClientProxy::create(viewImpl()->client() ? viewImpl()->client()->speechRecognizer() : nullptr));
 
         if (RuntimeEnabledFeatures::screenOrientationEnabled())
             ScreenOrientationController::provideTo(*m_frame, m_client ? m_client->webScreenOrientationClient() : nullptr);
+        if (RuntimeEnabledFeatures::presentationEnabled())
+            PresentationController::provideTo(*m_frame, m_client ? m_client->presentationClient() : nullptr);
     }
 }
 
 PassRefPtrWillBeRawPtr<LocalFrame> WebLocalFrameImpl::initializeCoreFrame(FrameHost* host, FrameOwner* owner, const AtomicString& name, const AtomicString& fallbackName)
 {
     RefPtrWillBeRawPtr<LocalFrame> frame = LocalFrame::create(&m_frameLoaderClientImpl, host, owner);
     setCoreFrame(frame);
     frame->tree().setName(name, fallbackName);
     // We must call init() after m_frame is assigned because it is referenced
     // during init(). Note that this may dispatch JS events; the frame may be
@@ skipping 382 matching lines @@
 {
     m_frameWidget = frameWidget;
 }
 
 WebFrameWidgetImpl* WebLocalFrameImpl::frameWidget() const
 {
     return m_frameWidget;
 }
 
 } // namespace blink