Handle AddNewContents in BackgroundContents so we can open windows.

chrome/browser/tab_contents/background_contents.cc

 // Copyright (c) 2011 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 "chrome/browser/tab_contents/background_contents.h"
 
 #include "chrome/browser/background/background_contents_service.h"
 #include "chrome/browser/extensions/extension_message_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_preferences_util.h"
@@ skipping 75 matching lines @@
   // available as a part of the web platform, it probably makes sense to have
   // some way to scope navigation of a background page to its opener's security
   // origin. Note: if the first navigation is to a URL outside the app's
   // extent a background page will be opened but will remain at about:blank.
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_BACKGROUND_CONTENTS_NAVIGATED,
       content::Source<Profile>(profile_),
       content::Details<BackgroundContents>(this));
 }
 
+// Forward requests to add a new TabContents to our delegate.
+void BackgroundContents::AddNewContents(TabContents* source,
+                                        TabContents* new_contents,
+                                        WindowOpenDisposition disposition,
+                                        const gfx::Rect& initial_pos,
+                                        bool user_gesture) {
+  delegate_->AddTabContents(
+      new_contents, disposition, initial_pos, user_gesture);
+}
+
 void BackgroundContents::RenderViewGone(base::TerminationStatus status) {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_BACKGROUND_CONTENTS_TERMINATED,
       content::Source<Profile>(profile_),
       content::Details<BackgroundContents>(this));
 
   // Our RenderView went away, so we should go away also, so killing the process
   // via the TaskManager doesn't permanently leave a BackgroundContents hanging
   // around the system, blocking future instances from being created
   // <http://crbug.com/65189>.
   delete this;
 }
 
 void BackgroundContents::Observe(int type,
                                  const content::NotificationSource& source,
                                  const content::NotificationDetails& details) {
   // TODO(rafaelw): Implement pagegroup ref-counting so that non-persistent
   // background pages are closed when the last referencing frame is closed.
   switch (type) {
     case chrome::NOTIFICATION_PROFILE_DESTROYED:
     case content::NOTIFICATION_APP_TERMINATING: {
       delete this;
       break;
     }
     default:
       NOTREACHED() << "Unexpected notification sent.";
       break;
   }
 }