Add File::Open / Create functions to take an rtc::Pathname

webrtc/base/file.h

 /*
  *  Copyright (c) 2016 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.
  */
 
 #ifndef WEBRTC_BASE_FILE_H_
 #define WEBRTC_BASE_FILE_H_
 
 #include <stdint.h>
 
 #include <string>
 
+#include "webrtc/base/constructormagic.h"
+#include "webrtc/base/pathutils.h"
 #include "webrtc/base/platform_file.h"
-#include "webrtc/base/constructormagic.h"
 
 namespace rtc {
 
 // This class wraps the platform specific APIs for simple file interactions.
 //
 // The various read and write methods are best effort, i.e. if an underlying
 // call does not manage to read/write all the data more calls will be performed,
 // until an error is detected or all data is read/written.
 class File {
  public:
   // Wraps the given PlatformFile. This class is then responsible for closing
   // the file, which will be done in the destructor if Close is never called.
   explicit File(PlatformFile);
   // The default constructor produces a closed file.
   File();
   ~File();
 
   File(File&& other);
   File& operator=(File&& other);
 
   // Open and Create give files with both reading and writing enabled.
   static File Open(const std::string& path);
+  static File Open(Pathname&& path);
+  static File Open(const Pathname& path);
   // If the file already exists it will be overwritten.
   static File Create(const std::string& path);
+  static File Create(Pathname&& path);
+  static File Create(const Pathname& path);
 
   size_t Write(const uint8_t* data, size_t length);
   size_t Read(uint8_t* buffer, size_t length);
 
   // The current position in the file after a call to these methods is platform
   // dependent (MSVC gives position offset+length, most other
   // compilers/platforms do not alter the position), i.e. do not depend on it,
   // do a Seek before any subsequent Read/Write.
   size_t WriteAt(const uint8_t* data, size_t length, size_t offset);
   size_t ReadAt(uint8_t* buffer, size_t length, size_t offset);
 
   // Attempt to position the file at the given offset from the start.
   // Returns true if successful, false otherwise.
   bool Seek(size_t offset);
 
   // Attempt to close the file. Returns true if successful, false otherwise,
   // most notably when the file is already closed.
   bool Close();
 
   bool IsOpen();
 
  private:
   PlatformFile file_;
   RTC_DISALLOW_COPY_AND_ASSIGN(File);
 };
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_FILE_H_