Update uses of UTF conversions in chrome_frame/, chromeos/, components/ to use the base:: namespace.

components/sessions/serialized_navigation_entry_test_helper.cc

 // Copyright (c) 2013 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 "components/sessions/serialized_navigation_entry_test_helper.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "components/sessions/serialized_navigation_entry.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 21 matching lines @@
 // static
 SerializedNavigationEntry SerializedNavigationEntryTestHelper::CreateNavigation(
     const std::string& virtual_url,
     const std::string& title) {
   SerializedNavigationEntry navigation;
   navigation.index_ = 0;
   navigation.referrer_ =
       content::Referrer(GURL("http://www.referrer.com"),
                         blink::WebReferrerPolicyDefault);
   navigation.virtual_url_ = GURL(virtual_url);
-  navigation.title_ = UTF8ToUTF16(title);
+  navigation.title_ = base::UTF8ToUTF16(title);
   navigation.page_state_ =
       content::PageState::CreateFromEncodedData("fake_state");
   navigation.timestamp_ = base::Time::Now();
   navigation.http_status_code_ = 200;
   return navigation;
 }
 
 // static
 void SerializedNavigationEntryTestHelper::SetPageState(
     const content::PageState& page_state,
@@ skipping 23 matching lines @@
 }
 
 // static
 void SerializedNavigationEntryTestHelper::SetTimestamp(
     base::Time timestamp,
     SerializedNavigationEntry* navigation) {
   navigation->timestamp_ = timestamp;
 }
 
 }  // namespace sessions