FileRecorderImpl and FilePlayerImpl don't need their own .h and .cc files

webrtc/modules/utility/utility.gypi

 # Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'targets': [
@@ skipping 11 matching lines @@
         'include/audio_frame_operations.h',
         'include/file_player.h',
         'include/file_recorder.h',
         'include/helpers_android.h',
         'include/helpers_ios.h',
         'include/jvm_android.h',
         'include/process_thread.h',
         'source/audio_frame_operations.cc',
         'source/coder.cc',
         'source/coder.h',
-        'source/file_player_impl.cc',
-        'source/file_player_impl.h',
-        'source/file_recorder_impl.cc',
-        'source/file_recorder_impl.h',
+        'source/file_player.cc',
+        'source/file_recorder.cc',
         'source/helpers_android.cc',
         'source/helpers_ios.mm',
         'source/jvm_android.cc',
         'source/process_thread_impl.cc',
         'source/process_thread_impl.h',
       ],
     },
   ], # targets
 }