Browser Plugin: Fixed browser process crash on embedder reload.

content/browser/browser_plugin/browser_plugin_embedder_helper.h

Index: content/browser/browser_plugin/browser_plugin_embedder_helper.h
diff --git a/content/browser/browser_plugin/browser_plugin_embedder_helper.h b/content/browser/browser_plugin/browser_plugin_embedder_helper.h
index c5e6c8ea329ec31411330e8562add89b5edb06d5..6e90c9d4eb0b6044ee0e750ebd17d419b6e56f1b 100644
--- a/content/browser/browser_plugin/browser_plugin_embedder_helper.h
+++ b/content/browser/browser_plugin/browser_plugin_embedder_helper.h
@@ -51,6 +51,9 @@ class BrowserPluginEmbedderHelper : public RenderViewHostObserver {
 
  private:
   // Message handlers.
+  void OnCreateGuest(int instance_id,
+                     const std::string& storage_partition_id,
+                     bool persist_storage);
   void OnNavigateGuest(int instance_id,
                        const std::string& src,
                        const BrowserPluginHostMsg_ResizeGuest_Params& params);