Revert of Explicitly call SequenceToken's default constructor.

Reason for revert:
xcode's clang now supports const default initialization.

Original issue's description:
> Explicitly call SequenceToken's default constructor.
>
> This CL is to workaround a clang bug occurring when building
> sequence_token_unittest.cc for Chrome iOS.
>
> BUG=632330
>
> Committed: https://crrev.com/0240044e435a3708d3f082771943a498a4cf3592
> Cr-Commit-Position: refs/heads/master@{#408515}

BUG: 632330
Change-Id: Ic4fafd8d9ee302056682091bfab2c929aa30072f
Reviewed-on: https://chromium-review.googlesource.com/1021593
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: danakj <danakj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#552362}

CrOS-Libchrome-Original-Commit: c2b52c5a1ef2709e75af2dd23c0852646edebc52
1 file changed
tree: 6134437b47409a77387b50c54a4469d1776630a2
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/