Move IsStringUTF8/ASCII to base namespace

chrome/browser/extensions/api/serial/serial_connection.cc

 // Copyright 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/browser/extensions/api/serial/serial_connection.h"
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
@@ skipping 146 matching lines @@
   return GetPortInfo(info);
 }
 
 void SerialConnection::StartOpen() {
   DCHECK(!open_complete_.is_null());
   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
   DCHECK(!file_.IsValid());
   // It's the responsibility of the API wrapper around SerialConnection to
   // validate the supplied path against the set of valid port names, and
   // it is a reasonable assumption that serial port names are ASCII.
-  DCHECK(IsStringASCII(port_));
+  DCHECK(base::IsStringASCII(port_));
   base::FilePath path(
       base::FilePath::FromUTF8Unsafe(MaybeFixUpPortName(port_)));
   int flags = base::File::FLAG_OPEN | base::File::FLAG_READ |
               base::File::FLAG_EXCLUSIVE_READ | base::File::FLAG_WRITE |
               base::File::FLAG_EXCLUSIVE_WRITE | base::File::FLAG_ASYNC |
               base::File::FLAG_TERMINAL_DEVICE;
   base::File file(path, flags);
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
@@ skipping 72 matching lines @@
       FROM_HERE,
       base::Bind(&TimeoutTask::Run, weak_factory_.GetWeakPtr()),
       delay_);
 }
 
 SerialConnection::TimeoutTask::~TimeoutTask() {}
 
 void SerialConnection::TimeoutTask::Run() const { closure_.Run(); }
 
 }  // namespace extensions