Remove command line flag to install an ephemeral app.

chrome/common/chrome_result_codes.h

 // 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.
 
 #ifndef CHROME_COMMON_CHROME_RESULT_CODES_H_
 #define CHROME_COMMON_CHROME_RESULT_CODES_H_
 
 #include "content/public/common/result_codes.h"
 
 namespace chrome {
@@ skipping 59 matching lines @@
 
   // The browser process exited early by passing the command line to another
   // running browser.
   RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED,
 
   // A dummy value we should not use. See crbug.com/152285.
   RESULT_CODE_NOTUSED_1,
 
   // Failed to install an item from the webstore when the
   // kInstallEphemeralAppFromWebstore command line flag was present.
+  // As this flag is no longer supported, this return code should never be
+  // returned.
   RESULT_CODE_INSTALL_FROM_WEBSTORE_ERROR_2,

[Lei Zhang, 2015/08/19 22:40:27]

Add NOTUSED to the name like the ones above/below? Update histograms.xml too.

[benwells, 2015/08/20 01:34:27]

Done.

 
   // A dummy value we should not use. See crbug.com/152285.
   RESULT_CODE_NOTUSED_2,
 
   // Returned when the user has not yet accepted the EULA.
   RESULT_CODE_EULA_REFUSED,
 
   // Failed to migrate user data directory for side-by-side package support
   // (Linux-only).
   RESULT_CODE_SXS_MIGRATION_FAILED,
 
   // The action is not allowed by a policy.
   RESULT_CODE_ACTION_DISALLOWED_BY_POLICY,
 
   // An browser process was sandboxed. This should never happen.
   RESULT_CODE_INVALID_SANDBOX_STATE,
 
   // Last return code (keep this last).
   RESULT_CODE_CHROME_LAST_CODE,
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_CHROME_RESULT_CODES_H_