Revert of Remove some legacy versions of StartsWith and EndsWith.

chrome/installer/util/shell_util.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.
 //
 // This file defines functions that integrate Chrome in Windows shell. These
 // functions can be used by Chrome as well as Chrome installer. All of the
 // work is done by the local functions defined in anonymous namespace in
 // this class.
 
 #include "chrome/installer/util/shell_util.h"
@@ skipping 1087 matching lines @@
     const ShellUtil::ShortcutProperties& properties) {
   DCHECK(dist);
   base::string16 shortcut_name;
   if (properties.has_shortcut_name()) {
     shortcut_name = properties.shortcut_name;
   } else {
     shortcut_name =
         dist->GetShortcutName(BrowserDistribution::SHORTCUT_CHROME);
   }
 
-  if (!base::EndsWith(shortcut_name, installer::kLnkExt,
-                      base::CompareCase::INSENSITIVE_ASCII))
+  if (!base::EndsWith(shortcut_name, installer::kLnkExt, false))
     shortcut_name.append(installer::kLnkExt);
 
   return shortcut_name;
 }
 
 // Converts ShellUtil::ShortcutOperation to the best-matching value in
 // base::win::ShortcutOperation.
 base::win::ShortcutOperation TranslateShortcutOperation(
     ShellUtil::ShortcutOperation operation) {
   switch (operation) {
@@ skipping 1394 matching lines @@
   base::string16 key_path(ShellUtil::kRegClasses);
   key_path.push_back(base::FilePath::kSeparators[0]);
   key_path.append(prog_id);
   return InstallUtil::DeleteRegistryKey(
       HKEY_CURRENT_USER, key_path, WorkItem::kWow64Default);
 
   // TODO(mgiuca): Remove the extension association entries. This requires that
   // the extensions associated with a particular prog_id are stored in that
   // prog_id's key.
 }