Remove kDisableDownloadNotification and stop compiling shelf code on

chrome/common/chrome_switches.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/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "build/build_config.h"
 
@@ skipping 234 matching lines @@
 // automated testing.
 const char kDisableDefaultApps[]            = "disable-default-apps";
 
 // Disables device discovery notifications.
 const char kDisableDeviceDiscoveryNotifications[] =
     "disable-device-discovery-notifications";
 
 // Disables Domain Reliability Monitoring.
 const char kDisableDomainReliability[]      = "disable-domain-reliability";
 
-// Disable download notification.
-const char kDisableDownloadNotification[] = "disable-download-notification";
-
 // Disable extensions.
 const char kDisableExtensions[]             = "disable-extensions";
 
 // Disable checking for user opt-in for extensions that want to inject script
 // into file URLs (ie, always allow it). This is used during automated testing.
 const char kDisableExtensionsFileAccessCheck[] =
     "disable-extensions-file-access-check";
 
 // Disable the net::URLRequestThrottlerManager functionality for
 // requests originating from extensions.
@@ skipping 1109 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches