Move PathIsWritable, DirectoryExists, ContentsEqual, and TextContentsEqual to the base namespace.

webkit/glue/webfileutilities_impl.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 "webkit/glue/webfileutilities_impl.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "net/base/file_stream.h"
@@ skipping 56 matching lines @@
   base::FilePath combined_path = path.Append(component);
   return combined_path.AsUTF16Unsafe();
 }
 
 bool WebFileUtilitiesImpl::makeAllDirectories(const WebString& path) {
   DCHECK(!sandbox_enabled_);
   return file_util::CreateDirectory(base::FilePath::FromUTF16Unsafe(path));
 }
 
 bool WebFileUtilitiesImpl::isDirectory(const WebString& path) {
-  return file_util::DirectoryExists(base::FilePath::FromUTF16Unsafe(path));
+  return base::DirectoryExists(base::FilePath::FromUTF16Unsafe(path));
 }
 
 WebKit::WebURL WebFileUtilitiesImpl::filePathToURL(const WebString& path) {
   return net::FilePathToFileURL(base::FilePath::FromUTF16Unsafe(path));
 }
 
 base::PlatformFile WebFileUtilitiesImpl::openFile(const WebString& path,
                                                   int mode) {
   if (sandbox_enabled_) {
     NOTREACHED();
@@ skipping 41 matching lines @@
 
 int WebFileUtilitiesImpl::writeToFile(base::PlatformFile handle,
                                       const char* data,
                                       int length) {
   if (handle == base::kInvalidPlatformFileValue || !data || length <= 0)
     return -1;
   return base::WritePlatformFileCurPosNoBestEffort(handle, data, length);
 }
 
 }  // namespace webkit_glue