Propagate storage partition id and persistence to the browser.

content/browser/browser_plugin/browser_plugin_embedder.h

Index: content/browser/browser_plugin/browser_plugin_embedder.h
diff --git a/content/browser/browser_plugin/browser_plugin_embedder.h b/content/browser/browser_plugin/browser_plugin_embedder.h
index 44e86c10a84cbe462fbd0615b96742f91cfd981e..2d5f3265b2beb67f99a37077c2971b464ea6fa3e 100644
--- a/content/browser/browser_plugin/browser_plugin_embedder.h
+++ b/content/browser/browser_plugin/browser_plugin_embedder.h
@@ -62,6 +62,12 @@ class CONTENT_EXPORT BrowserPluginEmbedder : public WebContentsObserver,
   static BrowserPluginEmbedder* Create(WebContentsImpl* web_contents,
                                        RenderViewHost* render_view_host);
 
+  // Creates a new guest.
+  void CreateGuest(RenderViewHost* render_view_host,
+                   int instance_id,
+                   std::string storage_partition_id,
+                   bool persist_storage);
+
   // Navigates in a guest (new or existing).
   void NavigateGuest(
       RenderViewHost* render_view_host,