Reland restrict extension features based on the extension type.

chrome/common/extensions/extension_constants.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_
 #pragma once
 
 #include <string>
 
@@ skipping 131 matching lines @@
   extern const char kCannotChangeExtensionID[];
   extern const char kCannotClaimAllHostsInExtent[];
   extern const char kCannotClaimAllURLsInExtent[];
   extern const char kCannotScriptGallery[];
   extern const char kCannotUninstallManagedExtension[];
   extern const char kChromeVersionTooLow[];
   extern const char kDevToolsExperimental[];
   extern const char kDisabledByPolicy[];
   extern const char kExperimentalFlagRequired[];
   extern const char kExpectString[];
-  extern const char kHostedAppsCannotIncludeExtensionFeatures[];
+  extern const char kFeatureNotAllowed[];
   extern const char kInvalidAllFrames[];
   extern const char kInvalidBackground[];
   extern const char kInvalidBackgroundInHostedApp[];
   extern const char kInvalidBrowserAction[];
   extern const char kInvalidBrowseURL[];
   extern const char kInvalidBrowseURLs[];
   extern const char kInvalidChromeURLOverrides[];
   extern const char kInvalidContentScript[];
   extern const char kInvalidContentScriptsList[];
   extern const char kInvalidContentSecurityPolicy[];
@@ skipping 108 matching lines @@
   extern const char kLocalesTreeMissing[];
   extern const char kManifestParseError[];
   extern const char kManifestUnreadable[];
   extern const char kMissingFile[];
   extern const char kMultipleOverrides[];
   extern const char kNoWildCardsInPaths[];
   extern const char kPermissionNotAllowed[];
   extern const char kOneUISurfaceOnly[];
   extern const char kReservedMessageFound[];
   extern const char kSidebarExperimental[];
-  extern const char kThemesCannotContainExtensions[];
   extern const char kWebContentMustBeEnabled[];
 #if defined(OS_CHROMEOS)
   extern const char kIllegalPlugins[];
 #endif
 }  // namespace extension_manifest_errors
 
 namespace extension_urls {
   // Returns the URL prefix for the extension/apps gallery. Can be set via the
   // --apps-gallery-url switch. The URL returned will not contain a trailing
   // slash. Do not use this as a prefix/extent for the store.  Instead see
@@ skipping 159 matching lines @@
 
   enum UnloadedExtensionReason {
     UNLOAD_REASON_DISABLE,    // Extension is being disabled.
     UNLOAD_REASON_UPDATE,     // Extension is being updated to a newer version.
     UNLOAD_REASON_UNINSTALL,  // Extension is being uninstalled.
     UNLOAD_REASON_TERMINATE,  // Extension has terminated.
   };
 }  // extension_misc
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_