Introduce incognito preference settings.

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/ref_counted.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:
@@ skipping 28 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
   };
 
+  // Does not assume owner ship of |prefs| and |incognito_prefs|.
   explicit ExtensionPrefs(PrefService* prefs,
+                          PrefService* incognito_prefs,
                           const FilePath& root_dir,
-                          ExtensionPrefStore* extension_pref_store);
+                          scoped_refptr<ExtensionPrefStore>
+                              extension_pref_store,
+                          scoped_refptr<ExtensionPrefStore>
+                              incognito_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 181 matching lines @@
   // of the extension is available.
   void SetUpdateUrlData(const std::string& extension_id,
                         const std::string& data);
   std::string GetUpdateUrlData(const std::string& extension_id);
 
   // Sets a preference value that is controlled by the extension. In other
   // words, this is not a pref value *about* the extension but something
   // global the extension wants to override.
   void SetExtensionControlledPref(const std::string& extension_id,
                                   const std::string& pref_key,
+                                  bool incognito,
                                   Value* value);
 
   static void RegisterUserPrefs(PrefService* prefs);
 
   // The underlying PrefService.
   PrefService* pref_service() const { return prefs_; }
 
  protected:
   // For unit testing. Enables injecting an artificial clock that is used
   // to query the current time, when an extension is installed.
@@ skipping 52 matching lines @@
                                    const std::string& pref_key,
                                    const std::set<std::string>& added_values);
 
   // Ensures and returns a mutable dictionary for extension |id|'s prefs.
   DictionaryValue* GetOrCreateExtensionPref(const std::string& id);
 
   // Same as above, but returns NULL if it doesn't exist.
   DictionaryValue* GetExtensionPref(const std::string& id) const;
 
   // Returns the dictionary of preferences controlled by the specified extension
-  // or NULL if unknown. All entries in the dictionary contain non-expanded
+  // or creates a new one. All entries in the dictionary contain non-expanded
   // paths.
-  DictionaryValue* GetExtensionControlledPrefs(const std::string& id) const;
+  DictionaryValue* GetExtensionControlledPrefs(const std::string& id,
+                                               bool incognito) const;
 
   // Serializes the data and schedules a persistent save via the |PrefService|.
   // Additionally fires a PREF_CHANGED notification with the top-level
   // |kExtensionsPref| path set.
   // TODO(andybons): Switch this to EXTENSION_PREF_CHANGED to be more granular.
   // TODO(andybons): Use a ScopedPrefUpdate to update observers on changes to
   // the mutable extension dictionary.
   void SavePrefsAndNotify();
 
   // Checks if kPrefBlacklist is set to true in the DictionaryValue.
@@ skipping 12 matching lines @@
   // in a later Chrome version.
   void FixMissingPrefs(const ExtensionIdSet& extension_ids);
 
   // Installs the persistent extension preferences into |prefs_|'s extension
   // pref store.
   void InitPrefStore();
 
   // Returns the extension controlled preference value of the extension that was
   // installed most recently.
   const Value* GetWinningExtensionControlledPrefValue(
-      const std::string& key) const;
+      const std::string& key, bool incognito) const;
 
   // Executes UpdatePrefStore for all |pref_keys|.
   void UpdatePrefStore(const PrefKeySet& pref_keys);
 
   // Finds the most recently installed extension that defines a preference
   // for |pref_key|, then stores its value in the PrefValueStore's extension
   // pref store and sends notifications to observers in case the value changed.
-  void UpdatePrefStore(const std::string& pref_key);
+  void UpdatePrefStore(const std::string& pref_key, bool incognito);
 
   // Retrieves a list of preference keys that the specified extension
   // 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.
+  // The pref service specific to this set of extension prefs. Owned by profile.
   PrefService* prefs_;
+  PrefService* incognito_prefs_;
 
   // Base extensions install directory.
   FilePath install_directory_;
 
   // Used to manipulate extension preferences.
-  ExtensionPrefStore* pref_store_;
+  scoped_refptr<ExtensionPrefStore> pref_store_;
+  // Shared with PrefValueStore of |incognito_prefs_|.
+  scoped_refptr<ExtensionPrefStore> incognito_pref_store_;
 
   // The URLs of all of the toolstrips.
   URLList shelf_order_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionPrefs);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_