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      1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_TABS_PINNED_TAB_CODEC_H_
      6 #define CHROME_BROWSER_TABS_PINNED_TAB_CODEC_H_
      7 #pragma once
      8 
      9 #include <vector>
     10 
     11 #include "chrome/browser/ui/browser_init.h"
     12 #include "googleurl/src/gurl.h"
     13 
     14 class PrefService;
     15 class Profile;
     16 
     17 // PinnedTabCodec is used to read and write the set of pinned tabs to
     18 // preferences. When Chrome exits the sets of pinned tabs are written to prefs.
     19 // On startup if the user has not chosen to restore the last session the set of
     20 // pinned tabs is opened.
     21 //
     22 // The entries are stored in preferences as a list of dictionaries, with each
     23 // dictionary describing the entry.
     24 class PinnedTabCodec {
     25  public:
     26   // Registers the preference used by this class.
     27   static void RegisterUserPrefs(PrefService* prefs);
     28 
     29   // Resets the preferences state.
     30   static void WritePinnedTabs(Profile* profile);
     31 
     32   // Reads and returns the set of pinned tabs to restore from preferences.
     33   static std::vector<BrowserInit::LaunchWithProfile::Tab> ReadPinnedTabs(
     34       Profile* profile);
     35 
     36  private:
     37   PinnedTabCodec();
     38   ~PinnedTabCodec();
     39 
     40   DISALLOW_COPY_AND_ASSIGN(PinnedTabCodec);
     41 };
     42 
     43 #endif  // CHROME_BROWSER_TABS_PINNED_TAB_CODEC_H_
     44