Remove command line flag to install an ephemeral app.

chrome/browser/extensions/startup_helper.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_BROWSER_EXTENSIONS_STARTUP_HELPER_H_
 #define CHROME_BROWSER_EXTENSIONS_STARTUP_HELPER_H_
 
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/extensions/pack_extension_job.h"
 
@@ skipping 19 matching lines @@
   // Handle --pack-extension flag from the |cmd_line| by packing the specified
   // extension. Returns false if the pack job failed.
   bool PackExtension(const base::CommandLine& cmd_line);
 
   // Validates a crx at the path given by the --validate-extension flag - can
   // it be installed? Returns true if the crx is valid, or false otherwise.
   // If the return value is false, a description of the problem may be written
   // into |error|.
   bool ValidateCrx(const base::CommandLine& cmd_line, std::string* error);
 
-  // Handle --install-ephemeral-app-from-webstore flag from |cmd_line| by
-  // downloading metadata from the webstore for the given id, prompting the
-  // user to confirm, and then downloading the crx and installing it.
-  bool InstallEphemeralApp(const base::CommandLine& cmd_line, Profile* profile);
-
  private:
   scoped_refptr<PackExtensionJob> pack_job_;
   bool pack_job_succeeded_;
 
   DISALLOW_COPY_AND_ASSIGN(StartupHelper);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_STARTUP_HELPER_H_