BrowserPlugin: Plumb ViewHostMsg_CreateWindow to BrowserPluginGuest

content/browser/browser_plugin/browser_plugin_guest.h

Index: content/browser/browser_plugin/browser_plugin_guest.h
diff --git a/content/browser/browser_plugin/browser_plugin_guest.h b/content/browser/browser_plugin/browser_plugin_guest.h
index 511db44bd31362ae56f57bd274ea8037d32b08ff..6818300a9c186abcfdd4d336cff53b4d86edc9a1 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.h
+++ b/content/browser/browser_plugin/browser_plugin_guest.h
@@ -41,6 +41,7 @@
 struct BrowserPluginHostMsg_AutoSize_Params;
 struct BrowserPluginHostMsg_CreateGuest_Params;
 struct BrowserPluginHostMsg_ResizeGuest_Params;
+struct ViewHostMsg_CreateWindow_Params;
 #if defined(OS_MACOSX)
 struct ViewHostMsg_ShowPopup_Params;
 #endif
@@ -250,6 +251,10 @@ class CONTENT_EXPORT BrowserPluginGuest : public NotificationObserver,
 
   // Message handlers for messages from guest.
 
+  void OnCreateWindow(const ViewHostMsg_CreateWindow_Params& params,
+                      int* route_id,
+                      int* surface_id,
+                      int64* cloned_session_storage_namespace_id);
   void OnHandleInputEventAck(
       WebKit::WebInputEvent::Type event_type,
       InputEventAckState ack_result);