Clean up a few more unused globals.

extensions/common/manifest_constants.cc

 // Copyright 2013 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 "extensions/common/manifest_constants.h"
 
 namespace extensions {
 
 namespace manifest_keys {
 
 const char kAllFrames[] = "all_frames";
 const char kAltKey[] = "altKey";
 const char kApp[] = "app";
-const char kAudio[] = "audio";
 const char kBackgroundAllowJsAccess[] = "background.allow_js_access";
 const char kBackgroundPage[] = "background.page";
 const char kBackgroundPageLegacy[] = "background_page";
 const char kBackgroundPersistent[] = "background.persistent";
 const char kBackgroundScripts[] = "background.scripts";
 const char kBrowserAction[] = "browser_action";
 const char kChromeURLOverrides[] = "chrome_url_overrides";
 const char kCommands[] = "commands";
 const char kContentPack[] = "content_pack";
 const char kContentPackSites[] = "sites";
@@ skipping 89 matching lines @@
 const char kShortName[] = "short_name";
 const char kSignature[] = "signature";
 const char kSpellcheck[] = "spellcheck";
 const char kSpellcheckDictionaryFormat[] = "dictionary_format";
 const char kSpellcheckDictionaryLanguage[] = "dictionary_language";
 const char kSpellcheckDictionaryLocale[] = "dictionary_locale";
 const char kSpellcheckDictionaryPath[] = "dictionary_path";
 const char kStorageManagedSchema[] = "storage.managed_schema";
 const char kSuggestedKey[] = "suggested_key";
 const char kSystemIndicator[] = "system_indicator";
-const char kSystemInfoDisplay[] = "systemInfo.display";
 const char kTheme[] = "theme";
 const char kThemeColors[] = "colors";
 const char kThemeDisplayProperties[] = "properties";
 const char kThemeImages[] = "images";
 const char kThemeTints[] = "tints";
 const char kTtsEngine[] = "tts_engine";
 const char kTtsGenderFemale[] = "female";
 const char kTtsGenderMale[] = "male";
 const char kTtsVoices[] = "voices";
 const char kTtsVoicesEventTypeEnd[] = "end";
@@ skipping 327 matching lines @@
     "Invalid value for 'offline_enabled'.";
 const char kInvalidOmniboxKeyword[] =
     "Invalid value for 'omnibox.keyword'.";
 const char kInvalidOptionsPage[] =
     "Invalid value for 'options_page'.";
 const char kInvalidOptionsPageExpectUrlInPackage[] =
     "Invalid value for 'options_page'.  Value must be a relative path.";
 const char kInvalidOptionsPageInHostedApp[] =
     "Invalid value for 'options_page'. Hosted apps must specify an "
     "absolute URL.";
-const char kInvalidOptionalPermissions[] =
-    "Invalid value for 'optional_permissions'.";
 const char kInvalidPageAction[] =
     "Invalid value for 'page_action'.";
 const char kInvalidPageActionDefaultTitle[] =
     "Invalid value for 'default_title'.";
 const char kInvalidPageActionIconPath[] =
     "Invalid value for 'page_action.default_icon'.";
 const char kInvalidPageActionId[] =
     "Required value 'id' is missing or invalid.";
 const char kInvalidPageActionName[] =
     "Invalid value for 'page_action.name'.";
@@ skipping 162 matching lines @@
 const char kWebRequestConflictsWithLazyBackground[] =
     "The 'webRequest' API cannot be used with event pages.";
 #if defined(OS_CHROMEOS)
 const char kIllegalPlugins[] =
     "Extensions cannot install plugins on Chrome OS";
 #endif
 
 }  // namespace manifest_errors
 
 }  // namespace extensions