Take extensions out of Profile into a profile-keyed service, ExtensionSystem.

chrome/browser/extensions/test_extension_system.cc

Index: chrome/browser/extensions/test_extension_system.cc
diff --git a/chrome/browser/extensions/test_extension_system.cc b/chrome/browser/extensions/test_extension_system.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5f271bf0020fd3dad1515cdab85bcdc00b5bf1a5
--- /dev/null
+++ b/chrome/browser/extensions/test_extension_system.cc
@@ -0,0 +1,99 @@
+// 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_system.h"
+
+#include "chrome/browser/extensions/extension_devtools_manager.h"
+#include "chrome/browser/extensions/extension_event_router.h"
+#include "chrome/browser/extensions/extension_info_map.h"
+#include "chrome/browser/extensions/extension_message_service.h"
+#include "chrome/browser/extensions/extension_pref_value_map.h"
+#include "chrome/browser/extensions/extension_process_manager.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_system.h"
+#include "chrome/browser/extensions/user_script_master.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/chrome_switches.h"
+
+
+TestExtensionSystem::TestExtensionSystem(Profile* profile)
+    : profile_(profile) {
+}
+
+TestExtensionSystem::~TestExtensionSystem() {
+}
+
+void TestExtensionSystem::Shutdown() {
+  extension_process_manager_.reset();
+}
+
+void TestExtensionSystem::CreateExtensionProcessManager() {
+  extension_process_manager_.reset(ExtensionProcessManager::Create(profile_));
+}
+
+ExtensionService* TestExtensionSystem::CreateExtensionService(
+    const CommandLine* command_line,
+    const FilePath& install_directory,
+    bool autoupdate_enabled) {
+  // Extension pref store, created for use by |extension_prefs_|.
+  extension_pref_value_map_.reset(new ExtensionPrefValueMap);
+
+  bool extensions_disabled =
+      command_line && command_line->HasSwitch(switches::kDisableExtensions);
+
+  // Note that the GetPrefs() creates a TestingPrefService, therefore
+  // the extension controlled pref values set in extension_prefs_
+  // are not reflected in the pref service. One would need to
+  // inject a new ExtensionPrefStore(extension_pref_value_map_.get(), false).
+
+  extension_prefs_.reset(
+      new ExtensionPrefs(profile_->GetPrefs(),
+                         install_directory,
+                         extension_pref_value_map_.get()));
+  extension_prefs_->Init(extensions_disabled);
+  extension_service_.reset(new ExtensionService(profile_,
+                                                command_line,
+                                                install_directory,
+                                                extension_prefs_.get(),
+                                                autoupdate_enabled,
+                                                true));
+  return extension_service_.get();
+}
+
+ExtensionService* TestExtensionSystem::extension_service() {
+  return extension_service_.get();
+}
+
+void TestExtensionSystem::SetExtensionService(ExtensionService* service) {
+  extension_service_.reset(service);
+}
+
+UserScriptMaster* TestExtensionSystem::user_script_master() {
+  return NULL;
+}
+
+ExtensionDevToolsManager* TestExtensionSystem::devtools_manager() {
+  return NULL;
+}
+
+ExtensionProcessManager* TestExtensionSystem::process_manager() {
+  return extension_process_manager_.get();
+}
+
+ExtensionInfoMap* TestExtensionSystem::info_map() {
+  return NULL;
+}
+
+ExtensionMessageService* TestExtensionSystem::message_service() {
+  return NULL;
+}
+
+ExtensionEventRouter* TestExtensionSystem::event_router() {
+  return NULL;
+}
+
+// static
+ProfileKeyedBase* TestExtensionSystem::Build(Profile* profile) {
+  return new TestExtensionSystem(profile);
+}