Initial skeleton for System Indicator API

chrome/browser/extensions/extension_action_manager.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/extension_action_manager.h"
 
 #include "chrome/browser/extensions/extension_action.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
@@ skipping 91 matching lines @@
   if (it != map->end())
     return it->second.get();
   if (!action_info)
     return NULL;
   linked_ptr<ExtensionAction> action(new ExtensionAction(
       extension_id, action_type, *action_info));
   (*map)[extension_id] = action;
   return action.get();
 }
 
-}
+}  // namespace
 
 ExtensionAction* ExtensionActionManager::GetPageAction(
     const extensions::Extension& extension) const {
   // The action box changes the meaning of the page action area, so we
   // need to convert page actions into browser actions.
   if (FeatureSwitch::script_badges()->IsEnabled())
     return NULL;
   return GetOrCreateOrNull(&page_actions_, extension.id(),
                            Extension::ActionInfo::TYPE_PAGE,
                            extension.page_action_info());
 }
 
 ExtensionAction* ExtensionActionManager::GetBrowserAction(
     const extensions::Extension& extension) const {
   const Extension::ActionInfo* action_info = extension.browser_action_info();
   Extension::ActionInfo::Type action_type = Extension::ActionInfo::TYPE_BROWSER;
   if (FeatureSwitch::script_badges()->IsEnabled() &&
       extension.page_action_info()) {
     // The action box changes the meaning of the page action area, so we
     // need to convert page actions into browser actions.
     action_info = extension.page_action_info();
     action_type = Extension::ActionInfo::TYPE_PAGE;
   }
   return GetOrCreateOrNull(&browser_actions_, extension.id(),
                            action_type, action_info);
 }
 
+ExtensionAction* ExtensionActionManager::GetSystemIndicator(
+    const extensions::Extension& extension) const {
+  return GetOrCreateOrNull(&system_indicators_, extension.id(),
+                           Extension::ActionInfo::TYPE_SYSTEM_INDICATOR,
+                           extension.system_indicator_info());
+}
+
 ExtensionAction* ExtensionActionManager::GetScriptBadge(
     const extensions::Extension& extension) const {
   return GetOrCreateOrNull(&script_badges_, extension.id(),
                            Extension::ActionInfo::TYPE_SCRIPT_BADGE,
                            extension.script_badge_info());
 }
 
-}
+}  // namespace extensions