Move WriteFile and WriteFileDescriptor from file_util to base namespace.

chrome/browser/extensions/updater/local_extension_cache_unittest.cc

 // Copyright 2014 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/updater/local_extension_cache.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 61 matching lines @@
                            const std::string& version,
                            size_t size,
                            const base::Time& timestamp) {
     CreateFile(GetExtensionFileName(dir, id, version), size, timestamp);
   }
 
   void CreateFile(const base::FilePath& file,
                   size_t size,
                   const base::Time& timestamp) {
     std::string data(size, 0);
-    EXPECT_EQ(file_util::WriteFile(file, data.data(), data.size()), int(size));
+    EXPECT_EQ(base::WriteFile(file, data.data(), data.size()), int(size));
     EXPECT_TRUE(base::TouchFile(file, timestamp, timestamp));
   }
 
   base::FilePath GetExtensionFileName(const base::FilePath& dir,
                                       const std::string& id,
                                       const std::string& version) {
     return dir.Append(id + "-" + version + ".crx");
   }
 
   void WaitForCompletion() {
@@ skipping 70 matching lines @@
 
   EXPECT_TRUE(base::PathExists(
       GetExtensionFileName(cache_dir, kTestExtensionId1, "1.0")));
   EXPECT_FALSE(base::PathExists(
       GetExtensionFileName(cache_dir, kTestExtensionId2, "2.0")));
   EXPECT_FALSE(base::PathExists(
       GetExtensionFileName(cache_dir, kTestExtensionId3, "3.0")));
 }
 
 }  // namespace extensions