Fix Bookmark manager DnD: WebDragDestinationDelegate was getting recreated with

content/browser/web_contents/web_contents_view_aura.h

Index: content/browser/web_contents/web_contents_view_aura.h
diff --git a/content/browser/web_contents/web_contents_view_aura.h b/content/browser/web_contents/web_contents_view_aura.h
index b2d239c6e915c038d70d6c5e645a6595a3f1025c..3ad4127ffb459fe69306e533d97c6d70407b4fa6 100644
--- a/content/browser/web_contents/web_contents_view_aura.h
+++ b/content/browser/web_contents/web_contents_view_aura.h
@@ -37,8 +37,6 @@ class CONTENT_EXPORT WebContentsViewAura
 
   void EndDrag(WebKit::WebDragOperationsMask ops);
 
-  content::WebDragDestDelegate* GetDragDestDelegate();
-
   // Overridden from WebContentsView:
   virtual void CreateView(const gfx::Size& initial_size) OVERRIDE;
   virtual content::RenderWidgetHostView* CreateViewForWidget(
@@ -137,6 +135,8 @@ class CONTENT_EXPORT WebContentsViewAura
   // has finished.
   bool close_tab_after_drag_ends_;
 
+  content::WebDragDestDelegate* drag_dest_delegate_;
+
   DISALLOW_COPY_AND_ASSIGN(WebContentsViewAura);
 };