Fix for Bug 50726 "Save extension list and "winning" prefs from extensions"

chrome/browser/extensions/test_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_TEST_EXTENSION_PREFS_H_
 #define CHROME_BROWSER_EXTENSIONS_TEST_EXTENSION_PREFS_H_
 #pragma once
 
 #include <string>
 
 #include "base/scoped_ptr.h"
 #include "base/scoped_temp_dir.h"
 #include "chrome/common/extensions/extension.h"
 
 class DictionaryValue;
 class ExtensionPrefs;
 class PrefService;
-
+class Profile;
 
 // This is a test class intended to make it easier to work with ExtensionPrefs
 // in tests.
 class TestExtensionPrefs {
  public:
   TestExtensionPrefs();
   virtual ~TestExtensionPrefs();
 
   ExtensionPrefs* prefs() { return prefs_.get(); }
-  PrefService* pref_service() { return pref_service_.get(); }
+  PrefService* pref_service() { return pref_service_; }
   const FilePath& temp_dir() const { return temp_dir_.path(); }
 
   // This will cause the ExtensionPrefs to be deleted and recreated, based on
   // any existing backing file we had previously created.
   void RecreateExtensionPrefs();
 
   // Creates a new Extension with the given name in our temp dir, adds it to
   // our ExtensionPrefs, and returns it.
   scoped_refptr<Extension> AddExtension(std::string name);
 
   // Similar to AddExtension, but takes a dictionary with manifest values.
   scoped_refptr<Extension> AddExtensionWithManifest(
       const DictionaryValue& manifest, Extension::Location location);
 
   // Similar to AddExtension, this adds a new test Extension. This is useful for
   // cases when you don't need the Extension object, but just the id it was
   // assigned.
   std::string AddExtensionAndReturnId(std::string name);
 
  protected:
   ScopedTempDir temp_dir_;
   FilePath preferences_file_;
   FilePath extensions_dir_;
-  scoped_ptr<PrefService> pref_service_;
+  PrefService* pref_service_;  // Weak pointer, owned by profile_.
   scoped_ptr<ExtensionPrefs> prefs_;
+  scoped_ptr<Profile> profile_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestExtensionPrefs);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_TEST_EXTENSION_PREFS_H_