Implement Read/WriteAtCurrentPos correctly

BUG=356979

Review URL: https://codereview.chromium.org/213473007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@260673 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 09ebff258da414ddd812fcf8e1a7d5f4b82ba88a
2 files changed
tree: 1d541b42cb75914f2369a2425e1ab8d476f08e27
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. ipc/
  6. mojo/
  7. testing/
  8. third_party/
  9. ui/