Manifest handler for all keys background-related.

chrome/common/extensions/api/extension_action/script_badge_handler.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/script_badge_handler.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/common/extensions/api/icons/icons_handler.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/extensions/feature_switch.h"
 #include "chrome/common/extensions/manifest.h"
 #include "chrome/common/extensions/manifest_handler_helpers.h"
 #include "extensions/common/install_warning.h"
 
 namespace errors = extension_manifest_errors;
+namespace keys = extension_manifest_keys;
 
 namespace extensions {
 
 ScriptBadgeHandler::ScriptBadgeHandler() {
-  prerequisite_keys_.push_back(extension_manifest_keys::kIcons);
 }
 
 ScriptBadgeHandler::~ScriptBadgeHandler() {
 }
 
-const std::vector<std::string>& ScriptBadgeHandler::PrerequisiteKeys() {
-  return prerequisite_keys_;
+const std::vector<std::string> ScriptBadgeHandler::PrerequisiteKeys() const {
+  return SingleKey(keys::kIcons);
 }
 
 bool ScriptBadgeHandler::Parse(Extension* extension, string16* error) {
   scoped_ptr<ActionInfo> action_info(new ActionInfo);
 
   // Provide a default script badge if one isn't declared in the manifest.
-  if (!extension->manifest()->HasKey(extension_manifest_keys::kScriptBadge)) {
+  if (!extension->manifest()->HasKey(keys::kScriptBadge)) {
     SetActionInfoDefaults(extension, action_info.get());
     ActionInfo::SetScriptBadgeInfo(extension, action_info.release());
     return true;
   }
 
   // So as to not confuse developers if they specify a script badge section
   // in the manifest, show a warning if the script badge declaration isn't
   // going to have any effect.
   if (!FeatureSwitch::script_badges()->IsEnabled()) {
     extension->AddInstallWarning(
         InstallWarning(InstallWarning::FORMAT_TEXT,
                        errors::kScriptBadgeRequiresFlag));
   }
 
   const DictionaryValue* dict = NULL;
-  if (!extension->manifest()->GetDictionary(
-          extension_manifest_keys::kScriptBadge, &dict)) {
+  if (!extension->manifest()->GetDictionary(keys::kScriptBadge, &dict)) {
     *error = ASCIIToUTF16(errors::kInvalidScriptBadge);
     return false;
   }
 
   action_info =
       manifest_handler_helpers::LoadActionInfo(extension, dict, error);
 
   if (!action_info.get())
     return false;  // Failed to parse script badge definition.
 
@@ skipping 13 matching lines @@
     extension->AddInstallWarning(
         InstallWarning(InstallWarning::FORMAT_TEXT,
                        errors::kScriptBadgeIconIgnored));
   }
 
   SetActionInfoDefaults(extension, action_info.get());
   ActionInfo::SetScriptBadgeInfo(extension, action_info.release());
   return true;
 }
 
-bool ScriptBadgeHandler::AlwaysParseForType(Manifest::Type type) {
+bool ScriptBadgeHandler::AlwaysParseForType(Manifest::Type type) const {
   return type == Manifest::TYPE_EXTENSION;
 }
 
 void ScriptBadgeHandler::SetActionInfoDefaults(const Extension* extension,
                                                ActionInfo* info) {
   info->default_title = extension->name();
   info->default_icon.Clear();
   for (size_t i = 0; i < extension_misc::kNumScriptBadgeIconSizes; ++i) {
     std::string path = IconsInfo::GetIcons(extension).Get(
         extension_misc::kScriptBadgeIconSizes[i],
         ExtensionIconSet::MATCH_BIGGER);
     if (!path.empty()) {
       info->default_icon.Add(
           extension_misc::kScriptBadgeIconSizes[i], path);
     }
   }
 }
 
+const std::vector<std::string> ScriptBadgeHandler::Keys() const {
+  return SingleKey(keys::kScriptBadge);
+}
+
 }  // namespace extensions