Move temp file functions to base namespace.

chrome/browser/media/chrome_webrtc_audio_quality_browsertest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <ctime>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/process/launch.h"
@@ skipping 138 matching lines @@
     EXPECT_EQ("ok-call-hung-up", ExecuteJavascript("hangUp()", from_tab));
   }
 
   void WaitUntilHangupVerified(content::WebContents* tab_contents) {
     EXPECT_TRUE(PollingWaitUntil("getPeerConnectionReadyState()",
                                  "no-peer-connection", tab_contents));
   }
 
   base::FilePath CreateTemporaryWaveFile() {
     base::FilePath filename;
-    EXPECT_TRUE(file_util::CreateTemporaryFile(&filename));
+    EXPECT_TRUE(base::CreateTemporaryFile(&filename));
     base::FilePath wav_filename =
         filename.AddExtension(FILE_PATH_LITERAL(".wav"));
     EXPECT_TRUE(base::Move(filename, wav_filename));
     return wav_filename;
   }
 
   PeerConnectionServerRunner peerconnection_server_;
 };
 
 class AudioRecorder {
@@ skipping 293 matching lines @@
                       &raw_mos, &mos_lqo));
 
   perf_test::PrintResult("audio_pesq", "", "raw_mos", raw_mos, "score", true);
   perf_test::PrintResult("audio_pesq", "", "mos_lqo", mos_lqo, "score", true);
 
   EXPECT_TRUE(base::DeleteFile(recording, false));
   EXPECT_TRUE(base::DeleteFile(trimmed_recording, false));
 
   ASSERT_TRUE(peerconnection_server_.Stop());
 }