Part 2 of repairing regressions to my old clang check plugins so Nico can

chrome/browser/extensions/extension_pref_value_map.h

 // Copyright (c) 2011 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_PREF_VALUE_MAP_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_VALUE_MAP_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 85 matching lines @@
 
   // Adds an observer and notifies it about the currently stored keys.
   void AddObserver(Observer* observer);
 
   void RemoveObserver(Observer* observer);
 
   const Value* GetEffectivePrefValue(const std::string& key,
                                      bool incognito) const;
 
  private:
-  struct ExtensionEntry {
-    // Installation time of the extension.
-    base::Time install_time;
-    // Whether extension is enabled in the profile.
-    bool enabled;
-    // Regular preferences.
-    PrefValueMap reg_preferences;
-    // Incognito preferences, empty for regular ExtensionPrefStore.
-    PrefValueMap inc_preferences;
-  };
+  struct ExtensionEntry;
 
   typedef std::map<std::string, ExtensionEntry*> ExtensionEntryMap;
 
   const PrefValueMap* GetExtensionPrefValueMap(const std::string& ext_id,
                                                bool incognito) const;
 
   PrefValueMap* GetExtensionPrefValueMap(const std::string& ext_id,
                                          bool incognito);
 
   // Returns all keys of pref values that are set by the extension of |entry|,
   // regardless whether they are set for incognito or regular pref values.
   void GetExtensionControlledKeys(const ExtensionEntry& entry,
                                   std::set<std::string>* out) const;
 
   void NotifyOfDestruction();
   void NotifyPrefValueChanged(const std::string& key);
   void NotifyPrefValueChanged(const std::set<std::string>& keys);
 
   // Mapping of which extension set which preference value. The effective
   // preferences values (i.e. the ones with the highest precedence)
   // are stored in ExtensionPrefStores.
   ExtensionEntryMap entries_;
 
   ObserverList<Observer, true> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionPrefValueMap);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_VALUE_MAP_H_