Update some uses of char16 to use the base:: namespace.

chrome/utility/importer/ie_importer_win.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/utility/importer/ie_importer_win.h"
 
 #include <ole2.h>
 #include <intshcut.h>
 #include <shlobj.h>
 #include <urlhist.h>
@@ skipping 28 matching lines @@
 #include "chrome/common/url_constants.h"
 #include "chrome/utility/importer/favicon_reencode.h"
 #include "components/autofill/core/common/password_form.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "url/gurl.h"
 
 namespace {
 
 // Registry key paths from which we import IE settings.
-const char16 kSearchScopePath[] =
+const base::char16 kSearchScopePath[] =
   L"Software\\Microsoft\\Internet Explorer\\SearchScopes";
-const char16 kIEVersionKey[] =
+const base::char16 kIEVersionKey[] =
   L"Software\\Microsoft\\Internet Explorer";
-const char16 kIEToolbarKey[] =
+const base::char16 kIEToolbarKey[] =
   L"Software\\Microsoft\\Internet Explorer\\Toolbar";
 
 // NTFS stream name of favicon image data.
-const char16 kFaviconStreamName[] = L":favicon:$DATA";
+const base::char16 kFaviconStreamName[] = L":favicon:$DATA";
 
 // A struct that hosts the information of AutoComplete data in PStore.
 struct AutoCompleteInfo {
   base::string16 key;
   std::vector<base::string16> data;
   bool is_url;
 };
 
 // Gets the creation time of the given file or directory.
 base::Time GetFileCreationTime(const base::string16& file) {
@@ skipping 804 matching lines @@
   static int version = -1;
   if (version < 0) {
     wchar_t buffer[128];
     DWORD buffer_length = sizeof(buffer);
     base::win::RegKey reg_key(HKEY_LOCAL_MACHINE, kIEVersionKey, KEY_READ);
     LONG result = reg_key.ReadValue(L"Version", buffer, &buffer_length, NULL);
     version = ((result == ERROR_SUCCESS)? _wtoi(buffer) : 0);
   }
   return version;
 }