Move temp file functions to base namespace.

chrome/browser/media/webrtc_log_uploader_unittest.cc

Index: chrome/browser/media/webrtc_log_uploader_unittest.cc
diff --git a/chrome/browser/media/webrtc_log_uploader_unittest.cc b/chrome/browser/media/webrtc_log_uploader_unittest.cc
index e2fb25af917206e677bc3c663908a2415f2de411..3e13f45f68b18424c1a3e4e3f5a7e10310087b32 100644
--- a/chrome/browser/media/webrtc_log_uploader_unittest.cc
+++ b/chrome/browser/media/webrtc_log_uploader_unittest.cc
@@ -88,7 +88,7 @@ class WebRtcLogUploaderTest : public testing::Test {
 TEST_F(WebRtcLogUploaderTest, AddUploadedLogInfoToUploadListFile) {
   // Get a temporary filename. We don't want the file to exist to begin with
   // since that's the normal use case, hence the delete.
-  ASSERT_TRUE(file_util::CreateTemporaryFile(&test_list_path_));
+  ASSERT_TRUE(base::CreateTemporaryFile(&test_list_path_));
   EXPECT_TRUE(base::DeleteFile(test_list_path_, false));
   scoped_ptr<WebRtcLogUploader> webrtc_log_uploader_(
       new WebRtcLogUploader());