NOT FOR LANDING Introduce and use WebMediaSession

Source/core/loader/FrameLoaderClient.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2012 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 51 matching lines @@
 class ResourceRequest;
 class ResourceResponse;
 class SecurityOrigin;
 class SharedWorkerRepositoryClient;
 class SubstituteData;
 class WebApplicationCacheHost;
 class WebApplicationCacheHostClient;
 class WebCookieJar;
 class WebMediaPlayer;
 class WebMediaPlayerClient;
+class WebMediaSession;
 class WebRTCPeerConnectionHandler;
 class WebServiceWorkerProvider;
 class WebSocketHandle;
 class Widget;
 
 class CORE_EXPORT FrameLoaderClient : public FrameClient {
 public:
     ~FrameLoaderClient() override {}
 
     virtual bool hasWebView() const = 0; // mainly for assertions
@@ skipping 72 matching lines @@
     // Called before plugin creation in order to ask the embedder whether a
     // placeholder should be substituted instead.
     virtual PassOwnPtrWillBeRawPtr<PluginPlaceholder> createPluginPlaceholder(Document&, const KURL&, const Vector<String>& paramNames, const Vector<String>& paramValues, const String& mimeType, bool loadManually) = 0;
 
     virtual PassRefPtrWillBeRawPtr<Widget> createPlugin(HTMLPlugInElement*, const KURL&, const Vector<String>&, const Vector<String>&, const String&, bool loadManually, DetachedPluginPolicy) = 0;
 
     virtual PassRefPtrWillBeRawPtr<Widget> createJavaAppletWidget(HTMLAppletElement*, const KURL& baseURL, const Vector<String>& paramNames, const Vector<String>& paramValues) = 0;
 
     virtual PassOwnPtr<WebMediaPlayer> createWebMediaPlayer(HTMLMediaElement&, const WebURL&, WebMediaPlayerClient*) = 0;
 
+    virtual PassOwnPtr<WebMediaSession> createWebMediaSession() = 0;
+
     virtual ObjectContentType objectContentType(const KURL&, const String& mimeType, bool shouldPreferPlugInsForImages) = 0;
 
     virtual void didCreateNewDocument() = 0;
     virtual void dispatchDidClearWindowObjectInMainWorld() = 0;
     virtual void documentElementAvailable() = 0;
 
     virtual v8::Local<v8::Value> createTestInterface(const AtomicString& name) = 0;
 
     virtual void didCreateScriptContext(v8::Local<v8::Context>, int extensionGroup, int worldId) = 0;
     virtual void willReleaseScriptContext(v8::Local<v8::Context>, int worldId) = 0;
@@ skipping 67 matching lines @@
         BeforeUnloadHandler,
         UnloadHandler,
     };
     virtual void suddenTerminationDisablerChanged(bool present, SuddenTerminationDisablerType) { }
 
 };
 
 } // namespace blink
 
 #endif // FrameLoaderClient_h