Add base:: to string16s in chrome/.

chrome/test/base/testing_profile_manager.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/test/base/testing_profile_manager.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_special_storage_policy.h"
 #include "chrome/browser/prefs/pref_service_syncable.h"
@@ skipping 30 matching lines @@
 }
 
 bool TestingProfileManager::SetUp() {
   SetUpInternal();
   return called_set_up_;
 }
 
 TestingProfile* TestingProfileManager::CreateTestingProfile(
     const std::string& profile_name,
     scoped_ptr<PrefServiceSyncable> prefs,
-    const string16& user_name,
+    const base::string16& user_name,
     int avatar_id,
     const std::string& managed_user_id,
     const TestingProfile::TestingFactories& factories) {
   DCHECK(called_set_up_);
 
   // Create a path for the profile based on the name.
   base::FilePath profile_path(profiles_dir_.path());
   profile_path = profile_path.AppendASCII(profile_name);
 
   // Create the profile and register it.
@@ skipping 103 matching lines @@
       << "ProfileManager already exists";
 
   // Set up the directory for profiles.
   ASSERT_TRUE(profiles_dir_.CreateUniqueTempDir());
 
   profile_manager_ = new testing::ProfileManager(profiles_dir_.path());
   browser_process_->SetProfileManager(profile_manager_);  // Takes ownership.
 
   called_set_up_ = true;
 }