Move more file_util functions to base namespace.

chrome/browser/history/thumbnail_database_unittest.cc

Index: chrome/browser/history/thumbnail_database_unittest.cc
diff --git a/chrome/browser/history/thumbnail_database_unittest.cc b/chrome/browser/history/thumbnail_database_unittest.cc
index 5e72eb7c935f1c92f6b4de577e7b31d3f1ed4e9e..6e00e62202ea8e0b0710c8b8335a7a53fc7c6044 100644
--- a/chrome/browser/history/thumbnail_database_unittest.cc
+++ b/chrome/browser/history/thumbnail_database_unittest.cc
@@ -83,7 +83,7 @@ int GetRootPage(sql::Connection* db, const char* name) {
 // per SQLite usage.
 bool ReadPage(const base::FilePath& path, size_t page_no,
               char* buf, size_t page_size) {
-  file_util::ScopedFILE file(file_util::OpenFile(path, "rb"));
+  file_util::ScopedFILE file(base::OpenFile(path, "rb"));
   if (!file.get())
     return false;
   if (0 != fseek(file.get(), (page_no - 1) * page_size, SEEK_SET))
@@ -97,7 +97,7 @@ bool ReadPage(const base::FilePath& path, size_t page_no,
 // per SQLite usage.
 bool WritePage(const base::FilePath& path, size_t page_no,
                const char* buf, size_t page_size) {
-  file_util::ScopedFILE file(file_util::OpenFile(path, "rb+"));
+  file_util::ScopedFILE file(base::OpenFile(path, "rb+"));
   if (!file.get())
     return false;
   if (0 != fseek(file.get(), (page_no - 1) * page_size, SEEK_SET))