With https://go.dev/issue/61417 implemented, we can use the token type
directly to unmarshal the JSON fields for the wire format.

While here, remove all uses of the deprecated ioutil package
as suggested by gopls while making these changes.

Change-Id: I79d82374643007a21b5b3d9a8117bed81273eca5
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/614415
Reviewed-by: Sean Liao <sean@liao.dev>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Change-Id: Id66b6e0caa86256064f7301b9d25bf861c72d116
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/665235
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Reviewed-by: Dominik Honnef <dominik@honnef.co>
Reviewed-by: Matt Hickford <matt.hickford@gmail.com>

Change-Id: I377136feb07354904b2f27600f3aef0629ca76f2
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/632295
Auto-Submit: Sean Liao <sean@liao.dev>
Reviewed-by: Sean Liao <sean@liao.dev>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
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The internal.Token type is intended to mirror the public Token type.
Unmarshalling is sometimes done on the internal token.
Sync the field addition, and update the conversion.

Updates #61417
Fixes #746

Change-Id: I55818810394adf743afb8d6d3be477a425c233b5
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/666815
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For #615

Change-Id: I1e17703f5a52240cbd7802ab1da1fd8b24be8d6c
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/666816
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Matt Hickford <matt.hickford@gmail.com>
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Change-Id: If3fc4542b92da802a31dcabc3405f7b1ab06a18d
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/666396
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Change-Id: I7e08428b87f141fa6d2932b7d60b3e726a454986
GitHub-Last-Rev: 0aef667
GitHub-Pull-Request: #646
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/496075
Auto-Submit: Sean Liao <sean@liao.dev>
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Reviewed-by: Junyang Shao <shaojunyang@google.com>
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Fixes #654

Change-Id: I735891f2a77c3797662b2eadab7e7828ff14bf5f
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/666915
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

Before CL 68017, the test verified that tokens expire exactly one day
after they are issued, within the time that Exchange() takes to execute.
A refactoring in the CL extended this time window to a whole day, making
the check much more lenient.

See: https://go-review.googlesource.com/c/oauth2/+/168017
Change-Id: I479db429f64b25a711624817c13f068b4675163e
Reviewed-on: https://go-review.googlesource.com/c/oauth2/+/630495
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Reviewed-by: Carlos Amedee <carlos@golang.org>