FileWrapper[Impl] modifications and actually remove the "Impl" class.

webrtc/modules/media_file/media_file_impl.cc

 /*
  *  Copyright (c) 2012 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.
  */
 
@@ skipping 353 matching lines @@
     }
 
     FileWrapper* inputStream = FileWrapper::Create();
     if(inputStream == NULL)
     {
        WEBRTC_TRACE(kTraceMemory, kTraceFile, _id,
                     "Failed to allocate input stream for file %s", fileName);
         return -1;
     }
 
-    if(inputStream->OpenFile(fileName, true, loop) != 0)
-    {
-        delete inputStream;
-        WEBRTC_TRACE(kTraceError, kTraceFile, _id,
-                     "Could not open input file %s", fileName);
-        return -1;
+    if (!inputStream->OpenFile(fileName, true)) {
+      delete inputStream;
+      WEBRTC_TRACE(kTraceError, kTraceFile, _id, "Could not open input file %s",
+                   fileName);
+      return -1;
     }
 
     if(StartPlayingStream(*inputStream, loop, notificationTimeMs,
                           format, codecInst, startPointMs, stopPointMs) == -1)
     {
         inputStream->CloseFile();
         delete inputStream;
         return -1;
     }
 
@@ skipping 351 matching lines @@
     }
 
     FileWrapper* outputStream = FileWrapper::Create();
     if(outputStream == NULL)
     {
         WEBRTC_TRACE(kTraceMemory, kTraceFile, _id,
                      "Failed to allocate memory for output stream");
         return -1;
     }
 
-    if(outputStream->OpenFile(fileName, false) != 0)
-    {
-        delete outputStream;
-        WEBRTC_TRACE(kTraceError, kTraceFile, _id,
-                     "Could not open output file '%s' for writing!",
-                     fileName);
-        return -1;
+    if (!outputStream->OpenFile(fileName, false)) {
+      delete outputStream;
+      WEBRTC_TRACE(kTraceError, kTraceFile, _id,
+                   "Could not open output file '%s' for writing!", fileName);
+      return -1;
     }
 
     if(maxSizeBytes)
     {
         outputStream->SetMaxFileSize(maxSizeBytes);
     }
 
     if(StartRecordingAudioStream(*outputStream, format, codecInst,
                                  notificationTimeMs) == -1)
     {
@@ skipping 358 matching lines @@
 {
     if((frequency == 8000) || (frequency == 16000)|| (frequency == 32000))
     {
         return true;
     }
     WEBRTC_TRACE(kTraceError, kTraceFile, -1,
                  "Frequency should be 8000, 16000 or 32000 (Hz)");
     return false;
 }
 }  // namespace webrtc