Remove //chrome dependency from ExtensionPrefs

chrome/browser/extensions/test_extension_prefs.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/extensions/test_extension_prefs.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 99 matching lines @@
   factory.set_extension_prefs(
       new ExtensionPrefStore(extension_pref_value_map_.get(), false));
   pref_service_ = factory.CreateSyncable(pref_registry_.get()).Pass();
 
   prefs_.reset(ExtensionPrefs::Create(
       pref_service_.get(),
       temp_dir_.path(),
       extension_pref_value_map_.get(),
       ExtensionsBrowserClient::Get()->CreateAppSorting().Pass(),
       extensions_disabled_,
+      std::vector<ExtensionPrefsObserver*>(),
       // Guarantee that no two extensions get the same installation time
       // stamp and we can reliably assert the installation order in the tests.
-      scoped_ptr<ExtensionPrefs::TimeProvider>(
-          new IncrementalTimeProvider())));
+      scoped_ptr<ExtensionPrefs::TimeProvider>(new IncrementalTimeProvider())));
 }
 
 scoped_refptr<Extension> TestExtensionPrefs::AddExtension(std::string name) {
   base::DictionaryValue dictionary;
   dictionary.SetString(manifest_keys::kName, name);
   dictionary.SetString(manifest_keys::kVersion, "0.1");
   return AddExtensionWithManifest(dictionary, Manifest::INTERNAL);
 }
 
 scoped_refptr<Extension> TestExtensionPrefs::AddApp(std::string name) {
@@ skipping 43 matching lines @@
 PrefService* TestExtensionPrefs::CreateIncognitoPrefService() const {
   return pref_service_->CreateIncognitoPrefService(
       new ExtensionPrefStore(extension_pref_value_map_.get(), true));
 }
 
 void TestExtensionPrefs::set_extensions_disabled(bool extensions_disabled) {
   extensions_disabled_ = extensions_disabled;
 }
 
 }  // namespace extensions