Plumbing for frame-specific WebWidgets

Source/core/loader/FrameLoaderClient.h

Index: Source/core/loader/FrameLoaderClient.h
diff --git a/Source/core/loader/FrameLoaderClient.h b/Source/core/loader/FrameLoaderClient.h
index 10fbf73a04211f9081b389e4ab50c9b4666e1ef7..bd9a91e2a2e0d0b6a4efd3cca80282b855fc9cc2 100644
--- a/Source/core/loader/FrameLoaderClient.h
+++ b/Source/core/loader/FrameLoaderClient.h
@@ -56,6 +56,7 @@ namespace blink {
     class Document;
     class DocumentLoader;
     class FetchRequest;
+    class GraphicsLayer;
     class HTMLAppletElement;
     class HTMLFormElement;
     class HTMLFrameOwnerElement;
@@ -225,6 +226,10 @@ namespace blink {
 
         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; }
     };