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_