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

content/renderer/gpu/gpu_benchmarking_extension.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/gpu/gpu_benchmarking_extension.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/file_util.h"
@@ skipping 330 matching lines @@
     if (!web_view)
       return;
 
     WebViewBenchmarkSupport* benchmark_support = web_view->benchmarkSupport();
     if (!benchmark_support)
       return;
 
     base::FilePath dirpath(
         base::FilePath::StringType(*dirname, *dirname + dirname.length()));
     if (!file_util::CreateDirectory(dirpath) ||
-        !file_util::PathIsWritable(dirpath)) {
+        !base::PathIsWritable(dirpath)) {
       std::string msg("Path is not writable: ");
       msg.append(dirpath.MaybeAsASCII());
       v8::ThrowException(v8::Exception::Error(
           v8::String::New(msg.c_str(), msg.length())));
       return;
     }
 
     SkPictureRecorder recorder(dirpath);
     benchmark_support->paint(&recorder,
                              WebViewBenchmarkSupport::PaintModeEverything);
@@ skipping 218 matching lines @@
       const v8::FunctionCallbackInfo<v8::Value>& args) {
     WebImageCache::clear();
   }
 };
 
 v8::Extension* GpuBenchmarkingExtension::Get() {
   return new GpuBenchmarkingWrapper();
 }
 
 }  // namespace content