wstring: remove a needless wchar_t that is ASCII

chrome/browser/shell_integration_unittest.cc

 // Copyright (c) 2010 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/shell_integration.h"
 
 #include <map>
 
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 289 matching lines @@
 TEST(ShellIntegrationTest, GetChromiumAppIdTest) {
   // Empty profile path should get chrome::kBrowserAppID
   FilePath empty_path;
   EXPECT_EQ(BrowserDistribution::GetDistribution()->GetBrowserAppId(),
             ShellIntegration::GetChromiumAppId(empty_path));
 
   // Default profile path should get chrome::kBrowserAppID
   FilePath default_user_data_dir;
   chrome::GetDefaultUserDataDirectory(&default_user_data_dir);
   FilePath default_profile_path =
-      default_user_data_dir.Append(chrome::kNotSignedInProfile);
+      default_user_data_dir.AppendASCII(chrome::kNotSignedInProfile);
   EXPECT_EQ(BrowserDistribution::GetDistribution()->GetBrowserAppId(),
             ShellIntegration::GetChromiumAppId(default_profile_path));
 
   // Non-default profile path should get chrome::kBrowserAppID joined with
   // profile info.
   FilePath profile_path(FILE_PATH_LITERAL("root"));
   profile_path = profile_path.Append(FILE_PATH_LITERAL("udd"));
   profile_path = profile_path.Append(FILE_PATH_LITERAL("User Data - Test"));
   EXPECT_EQ(BrowserDistribution::GetDistribution()->GetBrowserAppId() +
             L".udd.UserDataTest",
             ShellIntegration::GetChromiumAppId(profile_path));
 }
 #endif