Initial skeleton for System Indicator API

chrome/common/extensions/extension.h

Index: chrome/common/extensions/extension.h
diff --git a/chrome/common/extensions/extension.h b/chrome/common/extensions/extension.h
index 8efd7cf9f3911a8b3854ab057d2776682ad2ec10..149c111e24bf2ef0857b8e4217d5b1846cd16f94 100644
--- a/chrome/common/extensions/extension.h
+++ b/chrome/common/extensions/extension.h
@@ -224,6 +224,7 @@ class Extension : public base::RefCountedThreadSafe<Extension> {
       TYPE_BROWSER,
       TYPE_PAGE,
       TYPE_SCRIPT_BADGE,
+      TYPE_SYSTEM_INDICATOR,
     };
 
     // Empty implies the key wasn't present.
@@ -666,6 +667,9 @@ class Extension : public base::RefCountedThreadSafe<Extension> {
   const ActionInfo* browser_action_info() const {
     return browser_action_info_.get();
   }
+  const ActionInfo* system_indicator_info() const {
+    return system_indicator_info_.get();
+  }
   bool is_verbose_install_message() const {
     return !omnibox_keyword().empty() ||
            browser_action_info() ||
@@ -910,7 +914,7 @@ class Extension : public base::RefCountedThreadSafe<Extension> {
                        const base::DictionaryValue& handler_info,
                        string16* error);
   bool LoadFileHandlers(string16* error);
-  bool LoadExtensionFeatures(const APIPermissionSet& api_permissions,
+  bool LoadExtensionFeatures(APIPermissionSet* api_permissions,
                              string16* error);
   bool LoadDevToolsPage(string16* error);
   bool LoadInputComponents(const APIPermissionSet& api_permissions,
@@ -919,6 +923,7 @@ class Extension : public base::RefCountedThreadSafe<Extension> {
   bool LoadPageAction(string16* error);
   bool LoadBrowserAction(string16* error);
   bool LoadScriptBadge(string16* error);
+  bool LoadSystemIndicator(APIPermissionSet* api_permissions, string16* error);
   bool LoadFileBrowserHandlers(string16* error);
   // Helper method to load a FileBrowserHandlerList from the manifest.
   FileBrowserHandlerList* LoadFileBrowserHandlersHelper(
@@ -1081,6 +1086,9 @@ class Extension : public base::RefCountedThreadSafe<Extension> {
   // The extension's script badge.  Never NULL.
   scoped_ptr<ActionInfo> script_badge_info_;
 
+  // The extension's system indicator, if any.
+  scoped_ptr<ActionInfo> system_indicator_info_;
+
   // The extension's file browser actions, if any.
   scoped_ptr<FileBrowserHandlerList> file_browser_handlers_;