Fix second-profile dir so that it's a sibling of the first; eliminate a FromWStringHack.

chrome/test/live_sync/single_client_live_preferences_sync_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 "base/command_line.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/pref_service.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/common/pref_names.h"
@@ skipping 24 matching lines @@
 
  private:
   scoped_ptr<ProfileSyncServiceTestHarness> client_;
 
   DISALLOW_COPY_AND_ASSIGN(SingleClientLivePreferencesSyncTest);
 };
 
 IN_PROC_BROWSER_TEST_F(SingleClientLivePreferencesSyncTest, Sanity) {
   SetupSync();
 
-  PrefService* expected = LiveSyncTest::MakeProfile(L"verifier")->GetPrefs();
+  PrefService* expected = LiveSyncTest::MakeProfile(
+      FILE_PATH_LITERAL("verifier"))->GetPrefs();
   expected->SetBoolean(prefs::kHomePageIsNewTabPage, true);
 
   prefs()->SetBoolean(prefs::kHomePageIsNewTabPage, true);
   ASSERT_TRUE(client()->AwaitSyncCycleCompletion("Pref updated"));
 
   ASSERT_EQ(expected->GetBoolean(prefs::kHomePageIsNewTabPage),
             prefs()->GetBoolean(prefs::kHomePageIsNewTabPage));
 }