[Experimental, WIP] Demo version of extracting WebView selection data from CompositorFrame.

content/public/renderer/render_view.h

Index: content/public/renderer/render_view.h
diff --git a/content/public/renderer/render_view.h b/content/public/renderer/render_view.h
index e8afafc9ffe119b91b03c99f22e5584de2a5d6a0..30d2da8f5cbdbe99d937209b7222e0c6fbaa32ba 100644
--- a/content/public/renderer/render_view.h
+++ b/content/public/renderer/render_view.h
@@ -85,6 +85,8 @@ class CONTENT_EXPORT RenderView : public IPC::Sender {
   // editable div, or has an ARIA role of textbox.
   virtual bool IsEditableNode(const blink::WebNode& node) const = 0;
 
+  virtual bool IsPluginNode(const blink::WebNode& node) const = 0;
+
   // Returns true if we should display scrollbars for the given view size and
   // false if the scrollbars should be hidden.
   virtual bool ShouldDisplayScrollbars(int width, int height) const = 0;