Revert of [Sync] Clean up Android test code a bit.

Revert of [Sync] Clean up Android test code a bit. (patchset #3 id:40001 of https://codereview.chromium.org/2009603005/ )

Reason for revert:
This is breaking compilation on the Android ToT downstream bot, so reverting since this is an Android only patch (see https://uberchromegw.corp.google.com/i/internal.client.clank_tot/builders/clang-clankium-tot-builder/builds/27798/steps/compile/logs/stdio )

Original issue's description:
> [Sync] Clean up Android test code a bit.
>
> - Remove SigninTestUtil.get() and make it a fully static class.
> - Add SigninTestUtil.getCurrentAccount() for convenience.
> - setUpTestAccountAndSignInToSync -> setUpTestAccountAndSignIn because there's
>   no such thing as signing in to sync.
> - Remove SyncTestUtil.verify* and replace with asserts on SyncTestUtil.isSyncRequested
>   and SigninTestUtil.getCurrentAccount.
> - Make PassphraseTypeDialogFragmentTest inherit from SyncTestBase to resolve
>   a flake related to signin state.
>
> BUG=
>
> Committed: https://crrev.com/0b76f4432df2571fd8883419153fc871a74567f3
> Cr-Commit-Position: refs/heads/master@{#396648}

TBR=pavely@chromium.org,nyquist@chromium.org,maxbogue@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=

Committed: https://crrev.com/f94b7ad600368c3b3abbe97e36673748d6912598
Cr-Commit-Position: refs/heads/master@{#396718}

[clamy, 2016-05-30 12:22:43]

The CQ bit was checked by clamy@chromium.org

[clamy, 2016-05-30 12:22:44]

Created Revert of [Sync] Clean up Android test code a bit.

[commit-bot: I haz the power, 2016-05-30 12:23:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2019363002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2019363002/1

[commit-bot: I haz the power, 2016-05-30 12:56:27]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-30 12:58:03]

Description was changed from

==========
Revert of [Sync] Clean up Android test code a bit. (patchset #3 id:40001 of
https://codereview.chromium.org/2009603005/ )

Reason for revert:
This is breaking compilation on the Android ToT downstream bot, so reverting
since this is an Android only patch (see
https://uberchromegw.corp.google.com/i/internal.client.clank_tot/builders/cla...
)

Original issue's description:
> [Sync] Clean up Android test code a bit.
> 
> - Remove SigninTestUtil.get() and make it a fully static class.
> - Add SigninTestUtil.getCurrentAccount() for convenience.
> - setUpTestAccountAndSignInToSync -> setUpTestAccountAndSignIn because there's
>   no such thing as signing in to sync.
> - Remove SyncTestUtil.verify* and replace with asserts on
SyncTestUtil.isSyncRequested
>   and SigninTestUtil.getCurrentAccount.
> - Make PassphraseTypeDialogFragmentTest inherit from SyncTestBase to resolve
>   a flake related to signin state.
> 
> BUG=
> 
> Committed: https://crrev.com/0b76f4432df2571fd8883419153fc871a74567f3
> Cr-Commit-Position: refs/heads/master@{#396648}

TBR=pavely@chromium.org,nyquist@chromium.org,maxbogue@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=
==========

to

==========
Revert of [Sync] Clean up Android test code a bit. (patchset #3 id:40001 of
https://codereview.chromium.org/2009603005/ )

Reason for revert:
This is breaking compilation on the Android ToT downstream bot, so reverting
since this is an Android only patch (see
https://uberchromegw.corp.google.com/i/internal.client.clank_tot/builders/cla...
)

Original issue's description:
> [Sync] Clean up Android test code a bit.
>
> - Remove SigninTestUtil.get() and make it a fully static class.
> - Add SigninTestUtil.getCurrentAccount() for convenience.
> - setUpTestAccountAndSignInToSync -> setUpTestAccountAndSignIn because there's
>   no such thing as signing in to sync.
> - Remove SyncTestUtil.verify* and replace with asserts on
SyncTestUtil.isSyncRequested
>   and SigninTestUtil.getCurrentAccount.
> - Make PassphraseTypeDialogFragmentTest inherit from SyncTestBase to resolve
>   a flake related to signin state.
>
> BUG=
>
> Committed: https://crrev.com/0b76f4432df2571fd8883419153fc871a74567f3
> Cr-Commit-Position: refs/heads/master@{#396648}

TBR=pavely@chromium.org,nyquist@chromium.org,maxbogue@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=

Committed: https://crrev.com/f94b7ad600368c3b3abbe97e36673748d6912598
Cr-Commit-Position: refs/heads/master@{#396718}
==========

[commit-bot: I haz the power, 2016-05-30 12:58:04]

Patchset 1 (id:??) landed as
https://crrev.com/f94b7ad600368c3b3abbe97e36673748d6912598
Cr-Commit-Position: refs/heads/master@{#396718}