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

webrtc/modules/audio_processing/transient/wpd_tree_unittest.cc

 /*
  *  Copyright (c) 2013 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 77 matching lines @@
   std::unique_ptr<FileWrapper> matlab_files_data[kLeaves];
   std::unique_ptr<FileWrapper> out_files_data[kLeaves];
 
   for (int i = 0; i < kLeaves; ++i) {
     // Matlab files.
     matlab_files_data[i].reset(FileWrapper::Create());
 
     std::ostringstream matlab_stream;
     matlab_stream << "audio_processing/transient/wpd" << i;
     std::string matlab_string = test::ResourcePath(matlab_stream.str(), "dat");
-    matlab_files_data[i]->OpenFile(matlab_string.c_str(),
-                                   true,    // Read only.
-                                   false,   // No loop.
-                                   false);  // No text.
+    matlab_files_data[i]->OpenFile(matlab_string.c_str(), true);  // Read only.
 
-    bool file_opened = matlab_files_data[i]->Open();
+    bool file_opened = matlab_files_data[i]->is_open();
     ASSERT_TRUE(file_opened) << "File could not be opened.\n" << matlab_string;
 
     // Out files.
     out_files_data[i].reset(FileWrapper::Create());
 
     std::ostringstream out_stream;
     out_stream << test::OutputPath() << "wpd_" << i << ".out";
     std::string out_string = out_stream.str();
 
-    out_files_data[i]->OpenFile(out_string.c_str(),
-                                false,    // Write mode.
-                                false,    // No loop.
-                                false);   // No text.
+    out_files_data[i]->OpenFile(out_string.c_str(), false);  // Write mode.
 
-    file_opened = out_files_data[i]->Open();
+    file_opened = out_files_data[i]->is_open();
     ASSERT_TRUE(file_opened) << "File could not be opened.\n" << out_string;
   }
 
   // Prepare the test file.
   std::string test_file_name = test::ResourcePath(
       "audio_processing/transient/ajm-macbook-1-spke16m", "pcm");
 
   std::unique_ptr<FileWrapper> test_file(FileWrapper::Create());
 
-  test_file->OpenFile(test_file_name.c_str(),
-                      true,    // Read only.
-                      false,   // No loop.
-                      false);  // No text.
+  test_file->OpenFile(test_file_name.c_str(), true);  // Read only.
 
-  bool file_opened = test_file->Open();
+  bool file_opened = test_file->is_open();
   ASSERT_TRUE(file_opened) << "File could not be opened.\n" << test_file_name;
 
   float test_buffer[kTestBufferSize];
 
   // Only the first frames of the audio file are tested. The matlab files also
   // only contains information about the first frames.
   const size_t kMaxFramesToTest = 100;
   const float kTolerance = 0.03f;
 
   size_t frames_read = 0;
@@ skipping 49 matching lines @@
   // Close all matlab and out files.
   for (int i = 0; i < kLeaves; ++i) {
     matlab_files_data[i]->CloseFile();
     out_files_data[i]->CloseFile();
   }
 
   test_file->CloseFile();
 }
 
 }  // namespace webrtc