<webview>: Make contentWindow available prior to attachment (on display:none).

extensions/browser/guest_view/web_view/web_view_guest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 966 matching lines @@
     }
   }
 
   // Only read the src attribute if this is not a New Window API flow.
   if (!is_pending_new_window) {
     std::string src;
     params.GetString(webview::kAttributeSrc, &src);
     NavigateGuest(src, false /* force_navigation */);
   }
 
+  ignore_result(proxy_host()->GetGuestProxyRoutingID());

[lfg, 2015/03/05 22:14:00]

Comment that this is here to create the RV.

[Fady Samuel, 2015/03/07 00:20:28]

Removed.

 }
 
 void WebViewGuest::ShowContextMenu(
     int request_id,
     const WebViewGuestDelegate::MenuItemVector* items) {
   if (web_view_guest_delegate_)
     web_view_guest_delegate_->OnShowContextMenu(request_id, items);
 }
 
 void WebViewGuest::SetName(const std::string& name) {
@@ skipping 272 matching lines @@
       WebViewGuest::From(owner_web_contents()->GetRenderProcessHost()->GetID(),
                          new_window_instance_id);
   if (!guest)
     return;
 
   if (!allow)
     guest->Destroy();
 }
 
 }  // namespace extensions