[Extensions] Update installed bubble for extensions with synthesized actions

chrome/common/extensions/api/extension_action/action_info.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/common/extensions/api/extension_action/action_info.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/common/extensions/api/commands/commands_handler.h"
 #include "extensions/common/constants.h"
@@ skipping 27 matching lines @@
 
 static const ActionInfo* GetActionInfo(const Extension* extension,
                                        const std::string& key) {
   ActionInfoData* data = static_cast<ActionInfoData*>(
       extension->GetManifestData(key));
   return data ? data->action_info.get() : NULL;
 }
 
 }  // namespace
 
-ActionInfo::ActionInfo() {
-}
+ActionInfo::ActionInfo() : synthesized(false) {}
 
 ActionInfo::ActionInfo(const ActionInfo& other) = default;
 
 ActionInfo::~ActionInfo() {
 }
 
 // static
 scoped_ptr<ActionInfo> ActionInfo::Load(const Extension* extension,
                                         const base::DictionaryValue* dict,
                                         base::string16* error) {
@@ skipping 154 matching lines @@
 
 // static
 bool ActionInfo::IsVerboseInstallMessage(const Extension* extension) {
   const ActionInfo* page_action_info = GetPageActionInfo(extension);
   return page_action_info &&
       (CommandsInfo::GetPageActionCommand(extension) ||
        !page_action_info->default_icon.empty());
 }
 
 }  // namespace extensions