Disallow display of multiple experimental.extension.popup(...) windows

chrome/browser/renderer_host/render_view_host.cc

Index: chrome/browser/renderer_host/render_view_host.cc
===================================================================
--- chrome/browser/renderer_host/render_view_host.cc	(revision 46029)
+++ chrome/browser/renderer_host/render_view_host.cc	(working copy)
@@ -723,6 +723,8 @@
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidStopLoading, OnMsgDidStopLoading)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DocumentAvailableInMainFrame,
                         OnMsgDocumentAvailableInMainFrame)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_DocumentOnLoadCompletedInMainFrame,
+                        OnMsgDocumentOnLoadCompletedInMainFrame)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidLoadResourceFromMemoryCache,
                         OnMsgDidLoadResourceFromMemoryCache)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidDisplayInsecureContent,
@@ -1051,6 +1053,10 @@
   delegate_->DocumentAvailableInMainFrame(this);
 }
 
+void RenderViewHost::OnMsgDocumentOnLoadCompletedInMainFrame() {
+  delegate_->DocumentOnLoadCompletedInMainFrame(this);
+}
+
 void RenderViewHost::OnMsgDidLoadResourceFromMemoryCache(
     const GURL& url,
     const std::string& frame_origin,