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

chrome/browser/extensions/api/record/record_api_test.cc

Index: chrome/browser/extensions/api/record/record_api_test.cc
diff --git a/chrome/browser/extensions/api/record/record_api_test.cc b/chrome/browser/extensions/api/record/record_api_test.cc
index dfcda5d2396b6c56add342e9295852a937c9a205..3fd41d95132a45c1dbfd9d8f2ff7244407a2d137 100644
--- a/chrome/browser/extensions/api/record/record_api_test.cc
+++ b/chrome/browser/extensions/api/record/record_api_test.cc
@@ -106,13 +106,13 @@ class TestProcessStrategy : public ProcessStrategy {
         if (command_line.HasSwitch(switches::kRecordMode)) {
           base::CopyFile(url_path, url_path_copy);
         } else {
-          if (!file_util::ContentsEqual(url_path, url_path_copy)) {
+          if (!base::ContentsEqual(url_path, url_path_copy)) {
             std::string contents1, contents2;
             file_util::ReadFileToString(url_path, &contents1);
             file_util::ReadFileToString(url_path_copy, &contents2);
             LOG(ERROR) << "FILE MISMATCH" << contents1 << " VS " << contents2;
           }
-          EXPECT_TRUE(file_util::ContentsEqual(url_path, url_path_copy));
+          EXPECT_TRUE(base::ContentsEqual(url_path, url_path_copy));
         }
       }