Fix printf format specifier when printing FilePath

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/files/file_enumerator.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 464 matching lines @@
   base::FilePath 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;
 }
 
 void DeleteFileUnlessTestFailed(const base::FilePath& path, bool recursive) {
   if (::testing::Test::HasFailure())
-    printf("Test failed; keeping recording(s) at\n\t%s.\n",
+    printf("Test failed; keeping recording(s) at\n\t%" PRFilePath ".\n",
            path.value().c_str());
   else
     EXPECT_TRUE(base::DeleteFile(path, recursive));
 }
 
 std::vector<base::FilePath> ListWavFilesInDir(const base::FilePath& dir) {
   base::FileEnumerator files(dir, false, base::FileEnumerator::FILES,
                              FILE_PATH_LITERAL("*.wav"));
 
   std::vector<base::FilePath> result;
@@ skipping 290 matching lines @@
 }
 
 // Since the AGC is off here there should be no gain at all.
 IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcAudioQualityBrowserTest,
                        MANUAL_TestAutoGainIsOffWithAudioProcessingOff) {
   const char* kAudioCallWithoutAudioProcessing =
       "{audio: { mandatory: { echoCancellation: false } } }";
   ASSERT_NO_FATAL_FAILURE(TestAutoGainControl(
       kReferenceFile, kAudioCallWithoutAudioProcessing, "_no_agc"));
 }