Update some uses of UTF conversions in chrome/browser to use the base:: namespace.

chrome/browser/ui/android/infobars/auto_login_infobar_delegate_android.cc

 // Copyright 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 "chrome/browser/ui/android/infobars/auto_login_infobar_delegate_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_helper.h"
 #include "base/android/jni_string.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 37 matching lines @@
   DCHECK(delegate.obj());
   user_ = base::android::ConvertJavaStringToUTF8(
       Java_AutoLoginDelegate_initializeAccount(
           env, delegate.obj(), reinterpret_cast<intptr_t>(this), jrealm.obj(),
           jaccount.obj(), jargs.obj()));
   return !user_.empty();
 }
 
 base::string16 AutoLoginInfoBarDelegateAndroid::GetMessageText() const {
   return l10n_util::GetStringFUTF16(IDS_AUTOLOGIN_INFOBAR_MESSAGE,
-                                    UTF8ToUTF16(user_));
+                                    base::UTF8ToUTF16(user_));
 }
 
 bool AutoLoginInfoBarDelegateAndroid::Accept() {
   JNIEnv* env = base::android::AttachCurrentThread();
   ScopedJavaLocalRef<jobject> delegate =
       weak_java_auto_login_delegate_.get(env);
   DCHECK(delegate.obj());
   Java_AutoLoginDelegate_logIn(env, delegate.obj(),
                                reinterpret_cast<intptr_t>(this));
   // Do not close the infobar on accept, it will be closed as part
@@ skipping 42 matching lines @@
   infobar()->RemoveSelf();
 }
 
 void AutoLoginInfoBarDelegateAndroid::LoginDismiss(JNIEnv* env, jobject obj) {
   infobar()->RemoveSelf();
 }
 
 bool AutoLoginInfoBarDelegateAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }