Bug Fix: Video file name not updated properly.

BUG=

Review URL: https://codereview.chromium.org/396023002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283386 0039d316-1c4b-4281-b951-d872f2087c98

build/android/pylib/screenshot.py

@@ -84,7 +84,7 @@ class VideoRecorder(object):
     """
     host_file_name = host_file or ('screen-recording-%s.mp4' %
                                    self._device.old_interface.GetTimestamp())
-    host_file = os.path.abspath(host_file_name)
-    self._device.old_interface.EnsureHostDirectory(self._host_file)
+    host_file_name = os.path.abspath(host_file_name)
+    self._device.old_interface.EnsureHostDirectory(host_file_name)
     self._device.PullFile(self._device_file, host_file_name)
     self._device.RunShellCommand('rm -f "%s"' % self._device_file)