Update uses of UTF conversions in content/ to use the base:: namespace.

content/renderer/android/email_detector.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 "content/renderer/android/email_detector.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/renderer/android_content_detection_prefixes.h"
@@ skipping 45 matching lines @@
                             input,
                             UREGEX_CASE_INSENSITIVE,
                             status));
   if (matcher->find()) {
     *start_pos = matcher->start(status);
     DCHECK(U_SUCCESS(status));
     *end_pos = matcher->end(status);
     DCHECK(U_SUCCESS(status));
     icu::UnicodeString content_ustr(matcher->group(status));
     DCHECK(U_SUCCESS(status));
-    UTF16ToUTF8(content_ustr.getBuffer(), content_ustr.length(), content_text);
+    base::UTF16ToUTF8(content_ustr.getBuffer(), content_ustr.length(),
+        content_text);
     return true;
   }
 
   return false;
 }
 
 }  // namespace content