Updates to base unittests so they run correctly in libchrome on Android

base/files/file_util_posix.cc

 // 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.
 
 #include "base/files/file_util.h"
 
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <libgen.h>
@@ skipping 436 matching lines @@
 
 #if !defined(OS_MACOSX)
 // This is implemented in file_util_mac.mm for Mac.
 bool GetTempDir(FilePath* path) {
   const char* tmp = getenv("TMPDIR");
   if (tmp) {
     *path = FilePath(tmp);
   } else {
 #if defined(OS_ANDROID)
     return PathService::Get(base::DIR_CACHE, path);
+#elif defined(__BRILLO__)
+    *path = FilePath("/data/local/tmp");

[Daniel Erat, 2015/08/06 23:25:09]

i think that this one shouldn't be upstreamed; __BRILLO__ is just something
we're setting in the aosp repo for hacks.

[arihc, 2015/08/06 23:51:22]

Done.

 #else
     *path = FilePath("/tmp");
 #endif
   }
   return true;
 }
 #endif  // !defined(OS_MACOSX)
 
 #if !defined(OS_MACOSX)  // Mac implementation is in file_util_mac.mm.
 FilePath GetHomeDir() {
@@ skipping 459 matching lines @@
     return false;
 
   DeleteFile(from_path, true);
   return true;
 }
 
 }  // namespace internal
 
 #endif  // !defined(OS_NACL_NONSFI)
 }  // namespace base