Move more file_util functions to base namespace.

content/browser/tracing/tracing_controller_impl.cc

Index: content/browser/tracing/tracing_controller_impl.cc
diff --git a/content/browser/tracing/tracing_controller_impl.cc b/content/browser/tracing/tracing_controller_impl.cc
index ba9f2e01ab1b88fe1104f123b98191e0b02d9087..bc7cee2f930bc92a5fd5df6eea1792b4ee511654 100644
--- a/content/browser/tracing/tracing_controller_impl.cc
+++ b/content/browser/tracing/tracing_controller_impl.cc
@@ -68,7 +68,7 @@ TracingControllerImpl::ResultFile::ResultFile(const base::FilePath& path)
 void TracingControllerImpl::ResultFile::OpenTask() {
   if (path_.empty())
     base::CreateTemporaryFile(&path_);
-  file_ = file_util::OpenFile(path_, "w");
+  file_ = base::OpenFile(path_, "w");
   if (!file_) {
     LOG(ERROR) << "Failed to open " << path_.value();
     return;
@@ -104,7 +104,7 @@ void TracingControllerImpl::ResultFile::CloseTask(
   const char* trailout = "]}";
   size_t written = fwrite(trailout, strlen(trailout), 1, file_);
   DCHECK(written == 1);
-  file_util::CloseFile(file_);
+  base::CloseFile(file_);
   file_ = NULL;
 
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, callback);