Revert of [ios] Disable WebResourceUtilTest due to risk of timeouts.

Revert of [ios] Disable WebResourceUtilTest due to risk of timeouts. (patchset #1 id:1 of https://codereview.chromium.org/2926133002/ )

Reason for revert:
The underlying cause of http://crbug.com/728216 should be fixed. These tests should be good to go now.

Original issue's description:
> [ios] Disable WebResourceUtilTest due to risk of timeouts.
> 
> crbug.com/728216 details an issue that could cause
> ScopedTaskEnvironment::RunUntilIdle() to hang forever.  This CL disables the
> tests that have a chance of hanging until a fix is instituted.
> 
> BUG=728216
> 
> Review-Url: https://codereview.chromium.org/2926133002
> Cr-Commit-Position: refs/heads/master@{#477654}
> Committed: https://chromium.googlesource.com/chromium/src/+/88d6f53c69299ac5a899d64904fa795861817736

TBR=baxley@chromium.org,liaoyuke@chromium.org,rohitrao@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=728216
Review-Url: https://codereview.chromium.org/2927223002
Cr-Commit-Position: refs/heads/master@{#478126}
Committed: https://chromium.googlesource.com/chromium/src/+/e8d7f36c67e1fc0d5f4b37682bc72c5be565a3ce

[robliao, 2017-06-08 23:43:09]

The CQ bit was checked by robliao@chromium.org

[robliao, 2017-06-08 23:43:09]

Created Revert of [ios] Disable WebResourceUtilTest due to risk of timeouts.

[commit-bot: I haz the power, 2017-06-08 23:43:40]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-06-08 23:57:46]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1496965389052720, "parent_rev":
"ed6ec852ac94bcd64f7a9b7fb279916adb1cf22c", "commit_rev":
"e8d7f36c67e1fc0d5f4b37682bc72c5be565a3ce"}

[commit-bot: I haz the power, 2017-06-08 23:57:58]

Description was changed from

==========
Revert of [ios] Disable WebResourceUtilTest due to risk of timeouts. (patchset
#1 id:1 of https://codereview.chromium.org/2926133002/ )

Reason for revert:
The underlying cause of http://crbug.com/728216 should be fixed. These tests
should be good to go now.

Original issue's description:
> [ios] Disable WebResourceUtilTest due to risk of timeouts.
> 
> crbug.com/728216 details an issue that could cause
> ScopedTaskEnvironment::RunUntilIdle() to hang forever.  This CL disables the
> tests that have a chance of hanging until a fix is instituted.
> 
> BUG=728216
> 
> Review-Url: https://codereview.chromium.org/2926133002
> Cr-Commit-Position: refs/heads/master@{#477654}
> Committed:
https://chromium.googlesource.com/chromium/src/+/88d6f53c69299ac5a899d64904fa...

TBR=baxley@chromium.org,liaoyuke@chromium.org,rohitrao@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=728216
==========

to

==========
Revert of [ios] Disable WebResourceUtilTest due to risk of timeouts. (patchset
#1 id:1 of https://codereview.chromium.org/2926133002/ )

Reason for revert:
The underlying cause of http://crbug.com/728216 should be fixed. These tests
should be good to go now.

Original issue's description:
> [ios] Disable WebResourceUtilTest due to risk of timeouts.
> 
> crbug.com/728216 details an issue that could cause
> ScopedTaskEnvironment::RunUntilIdle() to hang forever.  This CL disables the
> tests that have a chance of hanging until a fix is instituted.
> 
> BUG=728216
> 
> Review-Url: https://codereview.chromium.org/2926133002
> Cr-Commit-Position: refs/heads/master@{#477654}
> Committed:
https://chromium.googlesource.com/chromium/src/+/88d6f53c69299ac5a899d64904fa...

TBR=baxley@chromium.org,liaoyuke@chromium.org,rohitrao@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=728216

Review-Url: https://codereview.chromium.org/2927223002
Cr-Commit-Position: refs/heads/master@{#478126}
Committed:
https://chromium.googlesource.com/chromium/src/+/e8d7f36c67e1fc0d5f4b37682bc7...
==========

[commit-bot: I haz the power, 2017-06-08 23:58:01]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/e8d7f36c67e1fc0d5f4b37682bc7...