Always use a /prefetch:# switch when launching a process on Windows.

chrome/chrome_common.gypi

 # Copyright (c) 2013 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.
 
 {
   'variables': {
     # File lists shared with GN build.
     'chrome_common_sources': [
       'common/all_messages.h',
       'common/attrition_experiments.h',
@@ skipping 488 matching lines @@
           'dependencies': [
             '<(DEPTH)/url/ipc/url_ipc.gyp:url_ipc',
         ],
         }],
         ['OS=="win"', {
           'include_dirs': [
             '<(DEPTH)/third_party/wtl/include',
           ],
           'dependencies': [
             '<(DEPTH)/components/components.gyp:dom_distiller_core',  # Needed by chrome_content_client.cc.
-            # TODO(fdoray): Remove this once the PreRead field trial has
-            # expired. crbug.com/577698
-            '<(DEPTH)/components/components.gyp:startup_metric_utils_win',
           ],
           'all_dependent_settings': {
             'msvs_settings': {
               'VCLinkerTool': {
                 'AdditionalDependencies': [
                   'wintrust.lib',
                 ],
               },
             },
           },
@@ skipping 169 matching lines @@
           ],
           'dependencies': [
             'installer_util',
             '../base/base.gyp:base',
           ],
         },
       ],
     }],
   ],
 }