Base: Move platform_file.* to files/file.*

base/platform_file.h

 // Copyright (c) 2012 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.
 
 #ifndef BASE_PLATFORM_FILE_H_
 #define BASE_PLATFORM_FILE_H_
 
 #include "build/build_config.h"
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include <string>
 
 #include "base/base_export.h"
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/time/time.h"
 
 namespace base {
 
+// ***************************************************************************
+// ***** Don't use anything from this file anymore. It is being removed!
+// ***** Use base/files/base_file.h instead
+// ***************************************************************************
+
 // PLATFORM_FILE_(OPEN|CREATE).* are mutually exclusive. You should specify
 // exactly one of the five (possibly combining with other flags) when opening
 // or creating a file.
 // PLATFORM_FILE_(WRITE|APPEND) are mutually exclusive. This is so that APPEND
 // behavior will be consistent with O_APPEND on POSIX.
 // PLATFORM_FILE_EXCLUSIVE_(READ|WRITE) only grant exclusive access to the file
 // on creation on POSIX; for existing files, consider using LockPlatformFile().
 enum PlatformFileFlags {
   PLATFORM_FILE_OPEN = 1 << 0,             // Opens a file, only if it exists.
   PLATFORM_FILE_CREATE = 1 << 1,           // Creates a new file, only if it
@@ skipping 243 matching lines @@
     return temp;
   }
 
  private:
   PlatformFile* value_;
 };
 
 }  // namespace base
 
 #endif  // BASE_PLATFORM_FILE_H_