Remove command line flag to install an ephemeral app.

chrome/browser/ui/startup/startup_browser_creator.cc

 // 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.
 
 #include "chrome/browser/ui/startup/startup_browser_creator.h"
 
 #include <algorithm>   // For max().
 #include <set>
 
 #include "apps/app_load_service.h"
@@ skipping 513 matching lines @@
     silent_launch = true;
   }
 #endif  // defined(ENABLE_PRINT_PREVIEW)
 
   if (command_line.HasSwitch(switches::kExplicitlyAllowedPorts)) {
     std::string allowed_ports =
         command_line.GetSwitchValueASCII(switches::kExplicitlyAllowedPorts);
     net::SetExplicitlyAllowedPorts(allowed_ports);
   }
 
-  if (command_line.HasSwitch(switches::kInstallEphemeralAppFromWebstore)) {
-    extensions::StartupHelper helper;
-    helper.InstallEphemeralApp(command_line, last_used_profile);
-    // Nothing more needs to be done, so return false to stop launching and
-    // quit.
-    return false;
-  }
-
   if (command_line.HasSwitch(switches::kValidateCrx)) {
     if (!process_startup) {
       LOG(ERROR) << "chrome is already running; you must close all running "
                  << "instances before running with the --"
                  << switches::kValidateCrx << " flag";
       return false;
     }
     extensions::StartupHelper helper;
     std::string message;
     std::string error;
@@ skipping 292 matching lines @@
   // If we are showing the app list then chrome isn't shown so load the app
   // list's profile rather than chrome's.
   if (command_line.HasSwitch(switches::kShowAppList)) {
     return AppListService::Get(chrome::HOST_DESKTOP_TYPE_NATIVE)->
         GetProfilePath(user_data_dir);
   }
 
   return g_browser_process->profile_manager()->GetLastUsedProfileDir(
       user_data_dir);
 }