Introduce a stable set of errors for inline install

chrome/browser/extensions/webstore_install_result.h

-// Copyright 2014 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_BROWSER_EXTENSIONS_WEBSTORE_INSTALL_RESULT_H_
-#define CHROME_BROWSER_EXTENSIONS_WEBSTORE_INSTALL_RESULT_H_
-
-namespace extensions {
-
-namespace webstore_install {
-
-// Result codes returned by WebstoreStandaloneInstaller and its subclasses.
-enum Result {
-  // Successful operation.
-  SUCCESS,
-
-  // Unknown error.
-  UNKNOWN_ERROR,
-
-  // The operation was aborted as the requestor is no longer alive.
-  ABORTED,
-
-  // The installation is not permitted.
-  NOT_PERMITTED,
-
-  // Invalid Chrome Web Store item ID.
-  INVALID_ID,
-
-  // Failed to retrieve extension metadata from the Web Store.
-  WEBSTORE_REQUEST_ERROR,
-
-  // The extension metadata retrieved from the Web Store was invalid.
-  INVALID_WEBSTORE_RESPONSE,
-
-  // An error occurred while parsing the extension manifest retrieved from the
-  // Web Store.
-  INVALID_MANIFEST,
-
-  // Failed to retrieve the extension's icon from the Web Store, or the icon
-  // was invalid.
-  ICON_ERROR,
-
-  // The user cancelled the operation.
-  USER_CANCELLED,
-
-  // The extension is blacklisted.
-  BLACKLISTED,
-
-  // Unsatisfied dependencies, such as shared modules.
-  MISSING_DEPENDENCIES,
-
-  // Unsatisfied requirements, such as webgl.
-  REQUIREMENT_VIOLATIONS,
-
-  // The extension is blocked by management policies.
-  BLOCKED_BY_POLICY,
-
-  // The launch feature is not available.
-  LAUNCH_FEATURE_DISABLED,
-
-  // The launch feature is not supported for the extension type.
-  LAUNCH_UNSUPPORTED_EXTENSION_TYPE
-};
-
-}  // namespace webstore_install
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_WEBSTORE_INSTALL_RESULT_H_