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

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index b194b1d6f1ce06fdbf6098b3ac3bb8d4f59ebff6..c7e7518a9687e7e3f64d56885de3733b96a0fd9a 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -1916,7 +1916,7 @@ void RenderViewImpl::focusedNodeChanged(const WebNode& fromNode,
     node_bounds = gfx::Rect(web_node.to<WebElement>().boundsInViewportSpace());
   }
   Send(new ViewHostMsg_FocusedNodeChanged(routing_id_, IsEditableNode(toNode),
-                                          node_bounds));
+                                          IsPluginNode(toNode), node_bounds));
 
   // TODO(estade): remove.
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FocusedNodeChanged(toNode));
@@ -2248,6 +2248,13 @@ bool RenderViewImpl::IsEditableNode(const WebNode& node) const {
   return false;
 }
 
+bool RenderViewImpl::IsPluginNode(const WebNode& node) const {
+  if (node.isNull())
+    return false;
+
+  return node.pluginContainer();
+}
+
 bool RenderViewImpl::ShouldDisplayScrollbars(int width, int height) const {
   return (!send_preferred_size_changes_ ||
           (disable_scrollbars_size_limit_.width() <= width ||