Tabs Extension: Implementation of tabs.duplicate api.

chrome/browser/ui/browser.cc

 // Copyright (c) 2012 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/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // OS_WIN
@@ skipping 2712 matching lines @@
   }
 
   return contents;
 }
 
 bool Browser::CanDuplicateContentsAt(int index) {
   NavigationController& nc = GetWebContentsAt(index)->GetController();
   return nc.GetWebContents() && nc.GetLastCommittedEntry();
 }
 
-void Browser::DuplicateContentsAt(int index) {
+TabContents* Browser::DuplicateContentsAt(int index) {
   TabContents* contents = GetTabContentsAt(index);
   CHECK(contents);
   TabContents* contents_dupe = contents->Clone();
 
   bool pinned = false;
   if (CanSupportWindowFeature(FEATURE_TABSTRIP)) {
     // If this is a tabbed browser, just create a duplicate tab inside the same
     // window next to the tab being duplicated.
     int index = tab_strip_model_->GetIndexOfTabContents(contents);
     pinned = IsTabPinned(index);
@@ skipping 25 matching lines @@
     browser->window()->Show();
 
     // The page transition below is only for the purpose of inserting the tab.
     browser->AddTab(contents_dupe, content::PAGE_TRANSITION_LINK);
   }
 
   SessionService* session_service =
       SessionServiceFactory::GetForProfileIfExisting(profile_);
   if (session_service)
     session_service->TabRestored(contents_dupe, pinned);
+  return contents_dupe;
 }
 
 void Browser::CloseFrameAfterDragSession() {
 #if !defined(OS_MACOSX)
   // This is scheduled to run after we return to the message loop because
   // otherwise the frame will think the drag session is still active and ignore
   // the request.
   // TODO(port): figure out what is required here in a cross-platform world
   MessageLoop::current()->PostTask(
       FROM_HERE, base::Bind(&Browser::CloseFrame, weak_factory_.GetWeakPtr()));
@@ skipping 2441 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         content::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }