Move more file_util functions to base namespace.

content/browser/browser_shutdown_profile_dumper.cc

Index: content/browser/browser_shutdown_profile_dumper.cc
diff --git a/content/browser/browser_shutdown_profile_dumper.cc b/content/browser/browser_shutdown_profile_dumper.cc
index ebec9360111f54cc3851b1ea9dec805c834f1cec..3e74e063b0c0b60aadd9d47783d0c248c2d12687 100644
--- a/content/browser/browser_shutdown_profile_dumper.cc
+++ b/content/browser/browser_shutdown_profile_dumper.cc
@@ -37,7 +37,7 @@ void BrowserShutdownProfileDumper::WriteTracesToDisc(
       base::debug::TraceLog::GetInstance()->GetBufferPercentFull() <<
       " full.";
   DCHECK(!dump_file_);
-  dump_file_ = file_util::OpenFile(file_name, "w+");
+  dump_file_ = base::OpenFile(file_name, "w+");
   if (!IsFileValid()) {
     LOG(ERROR) << "Failed to open performance trace file: " <<
         file_name.value();
@@ -131,7 +131,7 @@ void BrowserShutdownProfileDumper::WriteChars(const char* chars, size_t size) {
 void BrowserShutdownProfileDumper::CloseFile() {
   if (!dump_file_)
     return;
-  file_util::CloseFile(dump_file_);
+  base::CloseFile(dump_file_);
   dump_file_ = NULL;
 }