Sanitize PrefStore interface.

chrome/browser/extensions/extension_prefs.h

 // Copyright (c) 2010 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_EXTENSIONS_EXTENSION_PREFS_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_
 #pragma once
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/linked_ptr.h"
 #include "base/time.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/extensions/extension.h"
 #include "googleurl/src/gurl.h"
 
+class ExtensionPrefStore;
+
 // Class for managing global and per-extension preferences.
 //
 // This class distinguishes the following kinds of preferences:
 // - global preferences:
 //       internal state for the extension system in general, not associated
 //       with an individual extension, such as lastUpdateTime.
 // - per-extension preferences:
 //       meta-preferences describing properties of the extension like
 //       installation time, whether the extension is enabled, etc.
 // - extension controlled preferences:
@@ skipping 21 matching lines @@
   // application.
   // Do not remove items or re-order this enum as it is used in preferences
   // and histograms.
   enum LaunchType {
     LAUNCH_PINNED,
     LAUNCH_REGULAR,
     LAUNCH_FULLSCREEN,
     LAUNCH_WINDOW
   };
 
-  explicit ExtensionPrefs(PrefService* prefs, const FilePath& root_dir);
+  explicit ExtensionPrefs(PrefService* prefs,
+                          const FilePath& root_dir,
+                          ExtensionPrefStore* extension_pref_store);
   ~ExtensionPrefs();
 
   // Returns a copy of the Extensions prefs.
   // TODO(erikkay) Remove this so that external consumers don't need to be
   // aware of the internal structure of the preferences.
   DictionaryValue* CopyCurrentExtensions();
 
   // Returns true if the specified extension has an entry in prefs
   // and its killbit is on.
   bool IsExtensionKilled(const std::string& id);
@@ skipping 309 matching lines @@
   // intends to manage. Keys are always appended, |out| is not cleared.
   void GetExtensionControlledPrefKeys(const std::string& extension_id,
                                       PrefKeySet *out) const;
 
   // The pref service specific to this set of extension prefs.
   PrefService* prefs_;
 
   // Base extensions install directory.
   FilePath install_directory_;
 
+  // Used to manipulate extension preferences.
+  ExtensionPrefStore* pref_store_;
+
   // The URLs of all of the toolstrips.
   URLList shelf_order_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionPrefs);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_