Plumbing for frame-specific WebWidgets

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 38 matching lines @@
 class WebSocketHandle;
 class WebApplicationCacheHost;
 class WebApplicationCacheHostClient;
 }
 
 namespace blink {
 
     class Document;
     class DocumentLoader;
     class FetchRequest;
+    class GraphicsLayer;
     class HTMLAppletElement;
     class HTMLFormElement;
     class HTMLFrameOwnerElement;
     class HTMLPlugInElement;
     class HistoryItem;
     class KURL;
     class LocalFrame;
     class PluginPlaceholder;
     class ResourceError;
     class ResourceRequest;
@@ skipping 149 matching lines @@
         virtual SharedWorkerRepositoryClient* sharedWorkerRepositoryClient() { return 0; }
 
         virtual PassOwnPtr<blink::WebApplicationCacheHost> createApplicationCacheHost(blink::WebApplicationCacheHostClient*) = 0;
 
         virtual void didStopAllLoaders() { }
 
         virtual void dispatchDidChangeManifest() { }
 
         virtual unsigned backForwardLength() { return 0; }
 
+        // Local frame roots have their own WebWidgets which need to have root graphics
+        // layers set on them.
+        virtual void attachRootGraphicsLayer(GraphicsLayer*) { }

[dcheng, 2014/11/24 22:30:38]

Is this actually being used? It looks like we're just using ChromeClient in this
patch.

[kenrb, 2014/11/25 17:14:55]

Correct, this was an oversight. I had originally tried routing this call through
FrameLoaderClient but it broke popups. Fixed in current patch.

+
         virtual bool isFrameLoaderClientImpl() const { return false; }
     };
 
 } // namespace blink
 
 #endif // FrameLoaderClient_h