Upstream android file related code.

base/platform_file.h

 // Copyright (c) 2011 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_
 #pragma once
 
 #include "build/build_config.h"
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include <string>
 
 #include "base/base_api.h"
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/time.h"
 
+#if defined(OS_ANDROID)
+// Not implemented in Bionic. See platform_file_android.cc.
+extern "C" int futimes(int fd, const struct timeval tv[2]);
+
+// The prototype of mkdtemp is missing.
+extern "C" char* mkdtemp(char* path);

[joth, 2011/06/17 11:25:54]

could we just put these declarations in the .cc that need it
(platform_file_posix.cc, file_util_posix.cc respectively)?

No need to publish them to the users of this cross platform wrapper.

If we need to share them across .cc files, we might make an internal .h to host
them.

[michaelbai, 2011/06/17 22:41:29]

Done.

+#endif  // OS_ANDROID
+
 namespace base {
 
 #if defined(OS_WIN)
 typedef HANDLE PlatformFile;
 const PlatformFile kInvalidPlatformFileValue = INVALID_HANDLE_VALUE;
 #elif defined(OS_POSIX)
 typedef int PlatformFile;
 const PlatformFile kInvalidPlatformFileValue = -1;
 #endif
 
@@ skipping 143 matching lines @@
     return temp;
   }
 
  private:
   PlatformFile* value_;
 };
 
 }  // namespace base
 
 #endif  // BASE_PLATFORM_FILE_H_