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

net/url_request/url_fetcher_impl_unittest.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 "net/url_request/url_fetcher_impl.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 858 matching lines @@
   if (expected_file_error_ == OK) {
     EXPECT_TRUE(source->GetStatus().is_success());
     EXPECT_EQ(source->GetResponseCode(), 200);
 
     int error_code = OK;
     EXPECT_FALSE(fetcher_->FileErrorOccurred(&error_code));
 
     EXPECT_TRUE(source->GetResponseAsFilePath(
         take_ownership_of_file_, &file_path_));
 
-    EXPECT_TRUE(file_util::ContentsEqual(expected_file_, file_path_));
+    EXPECT_TRUE(base::ContentsEqual(expected_file_, file_path_));
   } else {
     int error_code = OK;
     EXPECT_TRUE(fetcher_->FileErrorOccurred(&error_code));
     EXPECT_EQ(expected_file_error_, error_code);
   }
   CleanupAfterFetchComplete();
 }
 
 TEST_F(URLFetcherTest, SameThreadsTest) {
   SpawnedTestServer test_server(SpawnedTestServer::TYPE_HTTP,
@@ skipping 542 matching lines @@
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 
   // Create a file before trying to fetch.
   static const char kFileToFetch[] = "simple.html";
   std::string data(10000, '?');  // Meant to be larger than simple.html.
   file_path_ = temp_dir.path().AppendASCII(kFileToFetch);
   ASSERT_EQ(static_cast<int>(data.size()),
             file_util::WriteFile(file_path_, data.data(), data.size()));
   ASSERT_TRUE(base::PathExists(file_path_));
   expected_file_ = test_server.GetDocumentRoot().AppendASCII(kFileToFetch);
-  ASSERT_FALSE(file_util::ContentsEqual(file_path_, expected_file_));
+  ASSERT_FALSE(base::ContentsEqual(file_path_, expected_file_));
 
   // Get a small file.
   CreateFetcherForFile(
       test_server.GetURL(std::string(kTestServerFilePrefix) + kFileToFetch),
       file_path_);
 
   base::MessageLoop::current()->Run();  // OnURLFetchComplete() will Quit().
 }
 
 TEST_F(URLFetcherFileTest, TryToOverwriteDirectory) {
@@ skipping 79 matching lines @@
 
     base::MessageLoop::current()->RunUntilIdle();
     ASSERT_EQ(kTake[i], base::PathExists(file_path_)) <<
         "FilePath: " << file_path_.value();
   }
 }
 
 }  // namespace
 
 }  // namespace net