Fix check for updating WebDragDestGtk when creating a view for a RVH.

content/browser/web_contents/web_contents_view_gtk.cc

Index: content/browser/web_contents/web_contents_view_gtk.cc
diff --git a/content/browser/web_contents/web_contents_view_gtk.cc b/content/browser/web_contents/web_contents_view_gtk.cc
index 9cb9212787816e8c54b169cb2bc5f3a37229a326..ccbe0bdbf9f4152f663d2945616b90a1c283bb1f 100644
--- a/content/browser/web_contents/web_contents_view_gtk.cc
+++ b/content/browser/web_contents/web_contents_view_gtk.cc
@@ -223,12 +223,18 @@ RenderWidgetHostView* WebContentsViewGtk::CreateViewForWidget(
                         GDK_POINTER_MOTION_MASK);
   InsertIntoContentArea(content_view);
 
-  // We don't want to change any state in this class for swapped out RVHs
-  // because they will not be visible at this time.
   if (render_widget_host->IsRenderView()) {
     RenderViewHost* rvh = RenderViewHost::From(render_widget_host);
-    if (!static_cast<RenderViewHostImpl*>(rvh)->is_swapped_out())
+    // If |rvh| is already the current render view host for the web contents, we
+    // need to initialize |drag_dest_| for drags to be properly handled.
+    // Otherwise, |drag_dest_| will be updated in RenderViewSwappedIn. The
+    // reason we can't simply check that this isn't a swapped out view is
+    // because there are other navigations that create views that may never be

[Charlie Reis, 2013/05/18 01:37:59]

nit: that create non-swapped-out views that may never...

[dcheng, 2013/05/18 01:49:52]

Done.

+    // displayed, e.g. a navigation that turns into a download.
+    if (rvh == web_contents_->GetRenderViewHost()) {
+      DCHECK(!drag_dest_);
       UpdateDragDest(rvh);
+    }
   }
 
   return view;