Shortcut ctrl+shift+T added on android.

chrome/browser/ui/android/tab_model/tab_model_list.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_LIST_H_
 #define CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_LIST_H_
 
 #include <stddef.h>
 
 #include <vector>
@@ skipping 17 matching lines @@
  public:
   typedef std::vector<TabModel*> TabModelVector;
   typedef TabModelVector::iterator iterator;
   typedef TabModelVector::const_iterator const_iterator;
 
   static void HandlePopupNavigation(chrome::NavigateParams* params);
   static void AddTabModel(TabModel* tab_model);
   static void RemoveTabModel(TabModel* tab_model);
 
   static TabModel* GetTabModelForWebContents(
-      content::WebContents* web_contents);
+      const content::WebContents* web_contents);

[Theresa, 2016/06/30 20:50:25]

Does this still need to be const?

[xingliu, 2016/07/01 00:30:39]

Done.

   static TabModel* FindTabModelWithId(SessionID::id_type desired_id);
   static bool IsOffTheRecordSessionActive();
 
   static const_iterator begin();
   static const_iterator end();
   static bool empty();
   static size_t size();
 
   static TabModel* get(size_t index);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(TabModelList);
 };
 
 #endif  // CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_LIST_H_