Android test runner: Put isolate directory within out/

build/android/pylib/utils/isolator.py

 # Copyright 2014 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.
 
 import fnmatch
 import glob
 import os
 import shutil
 import sys
 import tempfile
@@ skipping 40 matching lines @@
     'use_x11': '0',
     'v8_use_external_startup_data': '1',
     'msvs_version': '0',
   }
 
 
 class Isolator(object):
   """Manages calls to isolate.py for the android test runner scripts."""
 
   def __init__(self):
-    self._isolate_deps_dir = tempfile.mkdtemp()
+    # Put within output directory to ensure that hardlinks can be used.
+    self._isolate_deps_dir = tempfile.mkdtemp(prefix='isolate-',
+                                              dir=constants.GetOutDirectory())
 
   @property
   def isolate_deps_dir(self):
     return self._isolate_deps_dir
 
   def Clear(self):
     """Deletes the isolate dependency directory."""
     if os.path.exists(self._isolate_deps_dir):
       shutil.rmtree(self._isolate_deps_dir)
 
@@ skipping 93 matching lines @@
         shutil.move(os.path.join(root, filename), paks_dir)
 
     # Move everything in PRODUCT_DIR to top level.
     deps_product_dir = os.path.join(deps_out_dir, constants.GetBuildType())
     if os.path.isdir(deps_product_dir):
       for p in os.listdir(deps_product_dir):
         shutil.move(os.path.join(deps_product_dir, p), self._isolate_deps_dir)
       os.rmdir(deps_product_dir)
       os.rmdir(deps_out_dir)